pabelfly
2024-04-03, 07:29 PM
This thread was based off this (https://forums.giantitp.com/showsinglepost.php?p=25799074&postcount=5) original post by Morof Stonehands.
These threads are only as good as everyone else that assists in compiling them, so thank you for everyone for your help, no matter how minor.
Corrections and additions always welcome.
Quick Index
Ability Score Boosts
Races
Base Classes
Prestige Classes
Arcane
Divine
Feats
Domains
Spells
Items, Permanent Bonus
Alphabetical
By Price
Items, Consumables
Alphabetical
By Price
Other Spell DC Boosts
Spells with Nonstandard DCs
Ability Score Boosts
See here (https://minmaxforum.com/index.php?topic=19943.0) for a comprehensive guide to ways to boost ability scores, which also boosts spell DCs.
Races
Gnome (ECL 0) – +1 DC to illusion spells (Player’s Handbook)
Illumian (ECL 0) – The naenkrau sigil lets you leave up to two spell slots open to give +1 DC to all other spells of that level (Races of Destiny)
Spellscale (ECL 0) – Has the option of heightening spells 3/day (Races of the Dragon)
Jaebrin (1HD, 1LA) – +1 DC enchantment spells (Monster Manual V)
Svirfneblin (1HD, LA 3) – +1 DC illusion spells (Monster Manual)
Arkamoi (4HD, 4LA) – +1 DC to arcane spells for 1 minute after casting first arcane spell in encounter. Stacking +1, to max of +5 for each subsequent spell cast in that minute. All dissappear at end of minute. (Monster Manual V)
Hobgoblin Warsoul (10HD, 4LA) – Soul Tyrant to draw life out of hobgoblin ally, add +2 DC to next spell cast (Monster Manual V)
Zern (8HD, 7LA) +4 DC transmutation spells (Monster Manual IV)
Base Classes
Bard (Golarion Variant) – treated as being two levels higher for Bardic Music effects and save DCs (Pathfinder Campaign Setting)
Bard 6 (Spellscale) +2 save DC for Suggestion bardic music ability (Races of the Dragon)
Beguiler 2 , 14 – +1 DC to spells vs foes denied Dex to AC (Player’s Handbook II)
Druid 1 (Wind Walker Variant) – Zephyr Spellcasting, air spells cast with +1 DC (Dragon Magazine #311)
Druid 1 (Winter Warden Variant) – Cold Casting, Cold spells cast with +1 DC (Dragon Magazine #311)
Hexblade 1 (School Mastery ACF, Transmutation) +1 DC whenever you cast a spell that alters a creature’s form, kind or type. (Dragon Magazine #357)
Hexblade 4 (Dark Companion) (Player's Handbook II) - -2 to save DCs to enemies adjacent to your Dark Companion.
Hexblade 15 (Focus Caster, Enchantment ACF) – +2 DC to enchantment spells (Dragon Magazine #348)
Paladin of Tyranny 3 – Aura of Despair lowers saves by 2 (Unearthed Arcana)
Shugenja 1 – Gain Spell Focus, +1 DC for element type (Complete Divine)
Sorcerer 1 (School Mastery ACF, Transmutation) +1 DC whenever you cast a spell that alters a creature’s form, kind or type. (Dragon Magazine #357)
Sorcerer 5 (Dwarf Sorcerer ACF) – +1 DC to spell when both character and opponent are touching the ground (Races of Stone)
Sorcerer 15 (Focus Caster, Enchantment ACF) – +2 DC to enchantment spells (Dragon Magazine #348)
Wizard 1 (Arcane Duellist) – can increase a spell’s DC by 1, among other effects a number of times per day equal to INT bonus. (Pathfinder Campaign Setting)
Wizard 1 (High Diviner ACF) – give up familiar to gain +1 DC to divination spells (Unearthed Arcana)
Wizard 5, 15 (High Conjurer ACF) – +2/+4 DC to dispel conjured creatures (Unearthed Arcana)
Wizard 10 (Illusionist ACF) – give up bonus feat and gain +1 DC to illusion spells (Unearthed Arcana)
[B][I]Wizard 10 (Planar Wizard ACF) – +1 DC to spells when cast against creatures of the opposed alignment of her chosen one. +2 DC if the spell normally has the chosen alignment (Planar Handbook)
Wizard 15 (Focus Caster, Enchantment ACF) – +2 DC to enchantment spells (Dragon Magazine #348)
Wizard 15 (Fleshcrafter ACF) – +1 DC to spellcs cast on living creatures (Dragon Magazine #312)
[I]Prestige Classes
[B]Arcane Prestige Classes
Class
ECL for Bonus to DCs
Alignment
Spellcasting Progression
Bonus Description
Sourcebook
Cataclysm Mage 7
9/10
+1 DC enchantment (charm) spells
Explorer's Handbook
Dancer of Sharess 7
ECL 13
10/10
+2 DC enchantment spells
Dragon #290
Divine Oracle 1
ECL 6
10/10
+1 DC scrying spells
Complete Divine
Dragon Mystic 3
ECL 8
5/5
+2 DC enchantment spells or spells same type of energy damage as damaging breath weapon
Dragon #297
Dread Witch
ECL 4, 7
4/5
+1/+2 DC for Fear spells
Heroes of Horror
Dungeon Lord 5
ECL 10
0/5
+1 DC while in your dungeon against intruders
Complete Scoundrel
Elemental Savant 5, 10
ECL 10, 15
8/10
+1/+2 DC for chosen energy descriptor
Complete Arcane
Eunuch Warlock 1
ECL 11
Any Evil
See Class
+4 DC from any Spell Focus feat (can include multiple feats)
Dragon #297
Fatespinner 1
ECL 8
4/5
Add fatespin bonus of 1-5 to spell DC
Complete Arcane
Fatespinner 2
ECL 9
4/5
Make an enemy reroll, including a save reroll
Complete Arcane
Fatespinner 5
ECL 12
4/5
Make enemy to take -10 on next saving throw
Complete Arcane
Halruaan Elder 1
ECL 12
10/10
Circle Link - Add Heighten Spell to spell
Shining South
Hathran 5
ECL 12
LG, LN, NG
10/10
Circle Leader, Great Circle Leader - Add Heighten Spell to spell
Player's Guide to Faerun
Insidious Corruptor 6
ECL 13
Nonlawful
5/10
Release a subject to increase save DC of Charm spell by Cha modifier
Drow of the Underdark
Insidious Corruptor 7
ECL 14
Nonlawful
5/10
Makes subject cast spell at +2 DC at target you indicate
Drow of the Underdark
Insidious Corruptor 9
ECL 16
Nonlawful
5/10
Release a subject to increase save DC of Compulsion spell by Cha modifier
Drow of the Underdark
Keeper of the Cerulean Sign 2
ECL 7
10/10
+6 DC to spells that deal damage to aberrations, half class levels/day
Lords of Madness
Knight of the Chalice 4
ECL 12
LG
Independent, 4ths
+2 DC against evil outsiders
Complete Mage
Lifedrinker 3
ECL 6
Any Evil
Heighten Spell by using Lifepool points
Book of Vile Darkness
Magical Trickster 3
ECL 8
2/3
+1 DC on spell in same round you perform a skill trick
Complete Scoundrel
Master Specialist 4
ECL 7
10/10
+ 2 DC on " will disbelief" illusion spells
Complete Mage
Mind Mage 3, 9, 10
8/10, 8/10
3 - Increase spell DC by +1 if PP is 5 or higher
9 - Increase spell DC by +2 if PP is 10 or higher
10 - Add the key modifier to psionic and spellcasting together to psi-spell abilities (if it's the same modifier, double it).
Dragon Magazine 313
Paragnostic Apostle 1-5
ECL 6-10
5/5
Backhanded Attack, spells with extra save against nondamaging effect, add 1 to DC
Complete Champion
Paragnostic Apostle 1-5
ECL 6-10
5/5
Discern Weakness Attack, +1 DC for spells against specific enemy type
Complete Champion
Paragnostic Apostle 1-5
ECL 6-10
5/5
Noble Prescence, +1 DC for spells that affect the subject’s emotions but don’t specify actions
Complete Champion
Paragnostic Apostle 1-5
ECL 6-10
5/5
See through the Veil, +1 DC for necromancy spells that target undead
Complete Champion
Rage Mage 5, 10
Nonlawful
5/10
Angry Spell +2/+4 DC when raging for abujuration, conjuration, evocation, necromancy, transmutation
Complete Warrior
Red Wizard 5
ECL 10
Nongood
10/10
Circle Leader - Add Heighten Spell to spell
Dungeon Master's Guide
Soulcaster 1, 7
ECL 6, 12
10/10, 10/10
Invest 1/2 essential in a spell to boost CL and DC by 1/2
Savage Species
Sybil 1
ECL 8
0/10
Add Sybil class level to WIS for spell DC for divine casters
Savage Species
Thrall of Fraz-Urb'luu 1, 3, 5, 7, 9
ECL 8, 10, 12, 14, 16
CE
7/10
+1 DC profane bonus for Illuision spells 1/day to 5/day
Dragon #333 p32
Thrall of Dagon
ECL 10
CE
8/10
+1 DC from Language-Dependent spells
Dragon #349 p36
Thrall of Malcanthet 4, 8
ECL 10, 14
CE
7/10
+1, +2 DC profane bonus for Language-Dependent spells
Dragon #353 p30
Wild Soul 8
ECL 13
Nonlawful
9/10
+1 DC illusion spells
Complete Mage
Wild Soul 10
ECL 15
Nonlawful
9/10
+1 DC enchantment spells
Complete Mage
Divine Prestige Classes
Class
ECL for Bonus to DCs
Alignment
Spellcasting Progression
Bonus Description
Sourcebook
Divine Oracle 1
ECL 6
10/10
+1 DC scrying spells
Complete Divine
Divine Prankster 2
ECL 7
10/10
Spend Turn/rebuke attempt to add 10 to DC to disbelieve illusion spells
Races of Stone
Dread Witch
ECL 4, 7
4/5
+1/+2 DC for Fear spells
Heroes of Horror
Dungeon Lord 5
ECL 10
0/5
+1 DC while in your dungeon against intruders
Complete Scoundrel
Elemental Savant 5, 10
ECL 10, 15
8/10
+1/+2 DC for chosen energy descriptor
Complete Arcane
Fatespinner 1
ECL 8
4/5
Add fatespin bonus of 1-5 to spell DC
Complete Arcane
Fatespinner 2
ECL 9
4/5
Make an enemy reroll, including a save reroll
Complete Arcane
Fatespinner 5
ECL 12
4/5
Make enemy to take -10 on next saving throw
Complete Arcane
Hathran 5
ECL 12
LG, LN, NG
10/10
Circle Leader, Great Circle Leader - Add Heighten Spell to spell
Player's Guide to Faerun
Insidious Corruptor 6
ECL 13
Nonlawful
5/10
Release a subject to increase save DC of Charm spell by Cha modifier
Drow of the Underdark
Insidious Corruptor 7
ECL 14
Nonlawful
5/10
Makes subject cast spell at +2 DC at target you indicate
Drow of the Underdark
Insidious Corruptor 9
ECL 16
Nonlawful
5/10
Release a subject to increase save DC of Compulsion spell by Cha modifier
Drow of the Underdark
Keeper of the Cerulean Sign 2
ECL 7
10/10
+6 DC to spells that deal damage to aberrations, half class levels/day
Lords of Madness
Knight of the Chalice 4
ECL 12
LG
Independent, 4ths
+2 DC against evil outsiders
Complete Mage
Magical Trickster 3
ECL 8
2/3
+1 DC on spell in same round you perform a skill trick
Complete Scoundrel
Paragnostic Apostle 1-5
ECL 6-10
5/5
Backhanded Attack, spells with extra save against nondamaging effect, add 1 to DC
Complete Champion
Paragnostic Apostle 1-5
ECL 6-10
5/5
Discern Weakness Attack, +1 DC for spells against specific enemy type
Complete Champion
Paragnostic Apostle 1-5
ECL 6-10
5/5
Noble Prescence, +1 DC for spells that affect the subject’s emotions but don’t specify actions
Complete Champion
Paragnostic Apostle 1-5
ECL 6-10
5/5
See through the Veil, +1 DC for necromancy spells that target undead
Complete Champion
Planar Shepherd 5
ECL 10
10/10
Planar Bubble - Allows you to cast a bubble of the Negative Energy Plane, which bestows negative levels, no save
Complete Champion
Sybil 1
ECL 8
0/10
Add Sybil class level to WIS for spell DC for divine casters
Savage Species
Thrall of Fraz-Urb'luu 1, 3, 5, 7, 9
ECL 8, 10, 12, 14, 16
CE
7/10
+1 DC profane bonus for Illuision spells 1/day to 5/day
Dragon #333 p32
Thrall of Dagon
ECL 10
CE
8/10
+1 DC from Language-Dependent spells
Dragon #349 p36
Feats
See “Changing Spell Types” in this thread (Raising Caster Level ( https://forums.giantitp.com/showthread.php?654710-Raising-Caster-Level)) for information about ways to change or add new spell descriptors to take advantage of some options here.
Aberration Banemagic – +2 DC to spells that deal damage to aberrations (Lords of Madness)
Arcane Consumption – +4 bonus to spell DC on next spell you cast, become fatigued with -4 penalty to Con (Player’s Handbook II)
Battle Magic Tactics – for every spell with a saving throw cast on an enemy, that enemy takes a -1 against anyone you or else with Battle Magic Tactics until the end of the round. (Monster Manual 5, p. 84)
Battlecaster Offense – deal combat damage to foe for +1 DC to spells targeting that foe next round (Complete Mage)
Blood Sorcerer – +3 DC to all Maho-Tsukai spells cast (Oriental Adventure)
Captivating Melody – sacrifice bardic music for +2 DC on enchantment and illusion spells (Complete Mage)
Charmer – +1 DC to all spells from Enchantment (Charm) subschool. Stacks with Spell Focus. (Dragon #325)
Circle Magic – allows multiple casters to add Heighten Spell to cast spell (Ghostwalk)
Cold Focus – +1 DC cold descriptor spells (Frostburn)
Cold Focus, Greater – +1 DC cold descriptor spells ( Frostburn)
Commanding – +1 DC to all spells from Enchantment (Compulsion) subschool. Stacks with Spell Focus. (Dragon Compendium)
Cooperative spell (metamagic) – add 2 to the DC when cast with another person, additional +1 for each extra person (Complete Arcane)
Corrupt Arcane Studies – +1 DC for Sorcerer or Wizard spells, some drawbacks (Ghostwalk)
Demonic Conduct – +1 DC against lawful or good targets, or +2 DC against lawful good targets (Fiendish Codex)
Draconic Power – +1 DC to spells of Draconic Heritage Energy Type (Acid, Cold, Charm, Electric, Fire, Force, Light, Poison or Disease, Sonic) (also increases caster level by 1)
Draconic Aura (Energy) – +1 to +4 to DC of spells of acid, cold, electricity or fire. Various ways to increase this bonus. See also Dragonblooded feat. (Dragon Magic)
Earth Spell – Heighten Spell adds a further +1 DC to heightened spells
Enchanting Song – spend bardic music use to add +1 to DC of enchantment spell (Races of Stone)
Enemy of Good – +2 DC to saves against good subtype creatures, or creatures with aura of good (Elder Evils)
Fey Power – +1 DC to enchantment spells (Complete Mage)
Fiendish Power – +1 DC evil descriptor spells (Complete Mage)
Giant Banemagic – +2 DC against giants (Secrets of Xen'drik)
Heighten Spell (Metamagic) Increase spell level to increase spell DC (Player’s Handbook)
Hellsworn – +1 DC to evil descriptor spells 1/ encounter (Exemplars of Evil)
Heroes of Horror – Corrupt Spell Focus: feat, +1 DC for spells with corrupt component
Heroes of Horror – Greater Corrupt Spell Focus: feat, +1 DC for spells with corrupt component
Holy Potency – +Cha bonus to save against cure or inflict spell (Complete Champion)
Malign Spell Focus – +2 DC of evil descriptor spells (Book of Vile Darkness)
Manifest Druid – +1 DC of spells involving disease or poison (Player's Guide to Eberron)
Metamagic Vigor – feat, cast two spells enchanced by metamagic in consecutive rounds, +1 DC for second spell (Complete Mage)
Misleading Song - spend bardic music use to add +1 to DC of illusion spell (Races of Stone)
Named Spell (Metamagic) +2 to save DC of spells with Truespeak check that target a single enemy (Dragon 346, p88)
Named Spell, Greater (Metamagic) +2 to save DC of spells with Truespeak check that target a single enemy, stacks with Named Spell (Dragon 346, p88)
Nocturnal Caster – +1 DC to specific school of magic when casting at night (Tome of Magic)
Pious Spellsurge – +1d6 DC with 2 faith points spent (Complete Divine)
Planar Touchstone feat (Stormvault site), +1 DC to spells involving rain, wind, lightning or clouds (Planar Handbook)
Sanctum Spell – raises spell level by 1 when cast in your sanctum (Complete Arcane)
Shadow Trickster – +2 DC illusion spells when in Shadow Hand stance (Tome of Battle)
Spell Focus (Good, Evil, Chaos, Law) – feat, +1 DC to alignment descriptor spells, does not stack with other spell focus feats (Complete Divine)
Spell Focus Good – (likely superseded by Complete Divine feat of same name) by +2 DC of good descriptor spells (Book of Exalted Deeds)
Spell Focus – +1 DC to chosen spell school (Player’s Handbook)
Spell Focus, Greater – +1 DC to chosen spell school (Player’s Handbook)
Spell Rehersal – cumulative +1 DC to spell cast in succesion 2 or more times
Tattoo Focus – +1 DC on specialized school spells (Dungeon Master’s Guide)
Vow of Non-violence – +4 DC for non-damaging spells (Book of Exalted Deeds)
Spells
Breath of the Jungle (Druid 1) – creates a mist, DC increases by 2 within mist (Spell Compendium)
Harmonic Chorus (Bard 3) – +2 morale bonus to spell DC (Spell Compendium)
Mystic Surge (Sorcerer 4, Wizard 4) – +2 DC to next spell cast by subject (Player's Handbook 2)
Spell Enhancer (Sorcerer 4, Wizard 4) – swift action, the next
spell you cast has +1 DC (and 2 CL) (Spell Compendium)
Items, Permanent
Alphabetical
Amulet of Fearsome Might 11K gold, +2 DC to fear spells, does not stack with Spell Focus (Dragon Magic)
Blood Face of Erythnul 100G, focus, +1 DC to illusion spells or spells with the Chaos descriptor (Complete Champion)
Greater Crystal of Arcane Steel 6K gold, Weapon Augment Crystal, +1 DC for touch channeled through weapon (Magic Item Compendium)
Icemail Armor 52K gold, +2 DC to Cold spells (Web (https://web.archive.org/web/20030417030108/http://www.wizards.com/default.asp?x=dnd/fw/20030323a))
Moradin's Forge 100G focus, +1 DC earth domain or earth descriptor spells (Complete Champion)
Regalia of Evil Unpriced, Artifact set, +2 DC to spells (Book of Vile Darkness)
Vecna's hand and eye 100G focus, +1 DC knowledge and magic domain spells (Complete Champion)
Veil of Allure: 14K gold, Item, +2 DC to enchantment spells (Magic Item Compendium )
Vest of Master Evoker 10K gold, +2 to spell DCs 3/day (Magic Item Compendium)
Wrymbane Helm Unpriced, Legacy Item, +2 DC to spells targeting dragons (Dragon Magic)
By Price
Blood Face of Erythnul 100G, focus, +1 DC to illusion spells or spells with the Chaos descriptor (Complete Champion)
Icemail Armor 52K gold, +2 DC to Cold spells (Web (https://web.archive.org/web/20030417030108/http://www.wizards.com/default.asp?x=dnd/fw/20030323a))
Moradin's Forge 100G focus, +1 DC earth domain or earth descriptor spells (Complete Champion)
Vecna's Hand and Eye 100G focus, +1 DC knowledge and magic domain spells (Complete Champion)
Greater Crystal of Arcane Steel 6K gold, Weapon Augment Crystal, +1 DC for touch channeled through weapon (Magic Item Compendium)
Vest of Master Evoker 10K gold, +2 to spell DCs 3/day (Magic Item Compendium)
Amulet of Fearsome Might 11K gold, +2 DC to fear spells, does not stack with Spell Focus (Dragon Magic)
Veil of Allure: 14K gold, Item, +2 DC to enchantment spells (Magic Item Compendium )
Regalia of Evil Unpriced, Artifact set, +2 DC to spells (Book of Vile Darkness)
Wrymbane Helm Unpriced, Legacy Item, +2 DC to spells targeting dragons (Dragon Magic)
Items, Consumables
Alphabetical
Angel Radiance 20G, +1 DC spell component, for spells of dismissal, banishment, dispel evil or to drive out evil fiends (Book of Exalted Deeds)
Angel's Blood 85GP, +1 DC component, evil desrciptor spells (Complete Champion)
Coutl Scale 16GP, possible +1 DC spell component, 30% chance of raising DC by 1 (Book of Exalted Deeds)
Crypt Powder 150GP, +1 DC component, spells targeting undead (Complete Champion)
Essence of Order 300GP component, +1 DC law descriptor spells (Complete Champion)
Lillend Scale 15GP, possible +L1 DC spell component, if spell requires a will save, 40% chance, 60% if caster is bard (Book of Exalted Deeds)
Metallic Dragon Heart 7GP, possible +1 DC component, 30% chance to increase DC by 1 (Book of Vile Darkness)
Soul in Larva Form 250GP, +2 DC component (Book of Vile Darkness)
Unicorn Blood 500G, possible +1 DC spell component, if spell requires a fort save, 40% chance to raise DC by 1 (Book of Exalted Deeds)
By Price
Metallic Dragon Heart 7GP, possible +1 DC component, 30% chance to increase DC by 1 (Book of Vile Darkness)
Lillend Scale 15GP, possible +L1 DC spell component, if spell requires a will save, 40% chance, 60% if caster is bard (Book of Exalted Deeds)
Coutl Scale 16GP, possible +1 DC spell component, 30% chance of raising DC by 1 (Book of Exalted Deeds)
Angel Radiance 20G, +1 DC spell component, for spells of dismissal, banishment, dispel evil or to drive out evil fiends (Book of Exalted Deeds)
Angel's Blood 85GP, +1 DC component, evil desrciptor spells (Complete Champion)
Crypt Powder 150GP, +1 DC component, spells targeting undead (Complete Champion)
Soul in Larva Form 250GP, +2 DC component (Book of Vile Darkness)
Essence of Order 300GP component, +1 DC law descriptor spells (Complete Champion)
Unicorn Blood 500G, possible +1 DC spell component, if spell requires a fort save, 40% chance to raise DC by 1 (Book of Exalted Deeds)
Other Spell DC Boosts
Energy (Draconic Aura) – +1 to +4 to DC of spells of acid, cold, electricity or fire. Various ways to increase this bonus. See also the Draconic Aura feat and Dragonblooded. (Dragon Magic)
Gnome Chanting Circle Rune circle, gives +1 DC to illusion spells cast by gnomes inside circle (Races of Stone)
Illusion Veil (brow soulmeld) – +1 DC to illusion spells (Magic of Incarnum)
Magestone (material) – +1 DC (Dungeonscape)
Monster of Legend (template) – +4 DC (Monster Manual II)
Necropolis of Dread (location) – +1 DC fear spells (Dungeon Master's Guide II)
Ocrus-Blooded (template) – +1 DC for Necromancy spells (Monster Manual V)
Planar Bubble (combo) – Cast Planar Bubble on a Xeg-Yi, which is an outsider native to the Negative Energy Plane. The area for 20 feet around it then behaves like the Negative Energy Plane, i.e. bestows negative levels once per round (no save) on anything standing in it.
Saint (Template) – +2 DC to all spells (Book of Exalted Deeds)
Sharulhensa, the Alabaster Towers (affiliation) – +1 DC to enchantment spells, (score 15-22) (Player’s Handbook II)
Spell Barrage (teamwork benefit) – when a team member casts a spell needing a reflex save, all enemies take a -2 on subsequent reflex saves made due to other team members, and functions whether or not opponent makes save.
Temptation (domain) – +1 DC to mind affecting spells against a chosen gender (Fiendish Codex)
Tyranny (domain) – +1 DC compulsion descriptor spells (Complete Warrior)
Unnatural Aura (trait) – +2 to spells with Fear descriptor (Dragon Magazine 356, p89)
Unseelie Fey (template) – Living, nonfey creatures within 5ft suffer a morale penalty to saves equal to character's CHA bonus. (Dragon Compendium).
Vale of Smoke and Fog (location), +1 DC illusion spells (Complete Mage)
Spells with Nonstandard DCs
These spells scale with Casting Level. Here (https://forums.giantitp.com/showthread.php?654710-Raising-Caster-Level) is a thread about how to boost Caster Level.
Kiss of Death (Druid 5) – Does 1d10 Constitution damage, and second 1d10 Constitution damage a minute later. DC is 10 + 1/2 Caster level + WIS Modifier
Mind Poison (Sorcerer 3, Wizard 3) – Does 1d10 Wisdom damage, and second 1d10 Wisdom damage a minute later. DC is 10 + 1/2 Caster Level + INT or CHA Modifier)
Poison (various 3) – Does 1d10 Constitution damage, and second 1d10 Constitution damage a minute later. DC is 10 + 1/2 Caster level + WIS Modifier
Poison Thorns (Druid 5) – Does 1d4 Strength damage, and second 1d4 Strength damage a minute later. DC 10 + 1/2 Caster Level + WIS Modifier)
Spider Poison (Assassin 3, Sorcerer 3, Wizard 3) – Does 1d6 Strength damage, and second 1d6 Strength damage a minute later. DC is 10 + 1/2 Caster level + INT or CHA Modifier
These threads are only as good as everyone else that assists in compiling them, so thank you for everyone for your help, no matter how minor.
Corrections and additions always welcome.
Quick Index
Ability Score Boosts
Races
Base Classes
Prestige Classes
Arcane
Divine
Feats
Domains
Spells
Items, Permanent Bonus
Alphabetical
By Price
Items, Consumables
Alphabetical
By Price
Other Spell DC Boosts
Spells with Nonstandard DCs
Ability Score Boosts
See here (https://minmaxforum.com/index.php?topic=19943.0) for a comprehensive guide to ways to boost ability scores, which also boosts spell DCs.
Races
Gnome (ECL 0) – +1 DC to illusion spells (Player’s Handbook)
Illumian (ECL 0) – The naenkrau sigil lets you leave up to two spell slots open to give +1 DC to all other spells of that level (Races of Destiny)
Spellscale (ECL 0) – Has the option of heightening spells 3/day (Races of the Dragon)
Jaebrin (1HD, 1LA) – +1 DC enchantment spells (Monster Manual V)
Svirfneblin (1HD, LA 3) – +1 DC illusion spells (Monster Manual)
Arkamoi (4HD, 4LA) – +1 DC to arcane spells for 1 minute after casting first arcane spell in encounter. Stacking +1, to max of +5 for each subsequent spell cast in that minute. All dissappear at end of minute. (Monster Manual V)
Hobgoblin Warsoul (10HD, 4LA) – Soul Tyrant to draw life out of hobgoblin ally, add +2 DC to next spell cast (Monster Manual V)
Zern (8HD, 7LA) +4 DC transmutation spells (Monster Manual IV)
Base Classes
Bard (Golarion Variant) – treated as being two levels higher for Bardic Music effects and save DCs (Pathfinder Campaign Setting)
Bard 6 (Spellscale) +2 save DC for Suggestion bardic music ability (Races of the Dragon)
Beguiler 2 , 14 – +1 DC to spells vs foes denied Dex to AC (Player’s Handbook II)
Druid 1 (Wind Walker Variant) – Zephyr Spellcasting, air spells cast with +1 DC (Dragon Magazine #311)
Druid 1 (Winter Warden Variant) – Cold Casting, Cold spells cast with +1 DC (Dragon Magazine #311)
Hexblade 1 (School Mastery ACF, Transmutation) +1 DC whenever you cast a spell that alters a creature’s form, kind or type. (Dragon Magazine #357)
Hexblade 4 (Dark Companion) (Player's Handbook II) - -2 to save DCs to enemies adjacent to your Dark Companion.
Hexblade 15 (Focus Caster, Enchantment ACF) – +2 DC to enchantment spells (Dragon Magazine #348)
Paladin of Tyranny 3 – Aura of Despair lowers saves by 2 (Unearthed Arcana)
Shugenja 1 – Gain Spell Focus, +1 DC for element type (Complete Divine)
Sorcerer 1 (School Mastery ACF, Transmutation) +1 DC whenever you cast a spell that alters a creature’s form, kind or type. (Dragon Magazine #357)
Sorcerer 5 (Dwarf Sorcerer ACF) – +1 DC to spell when both character and opponent are touching the ground (Races of Stone)
Sorcerer 15 (Focus Caster, Enchantment ACF) – +2 DC to enchantment spells (Dragon Magazine #348)
Wizard 1 (Arcane Duellist) – can increase a spell’s DC by 1, among other effects a number of times per day equal to INT bonus. (Pathfinder Campaign Setting)
Wizard 1 (High Diviner ACF) – give up familiar to gain +1 DC to divination spells (Unearthed Arcana)
Wizard 5, 15 (High Conjurer ACF) – +2/+4 DC to dispel conjured creatures (Unearthed Arcana)
Wizard 10 (Illusionist ACF) – give up bonus feat and gain +1 DC to illusion spells (Unearthed Arcana)
[B][I]Wizard 10 (Planar Wizard ACF) – +1 DC to spells when cast against creatures of the opposed alignment of her chosen one. +2 DC if the spell normally has the chosen alignment (Planar Handbook)
Wizard 15 (Focus Caster, Enchantment ACF) – +2 DC to enchantment spells (Dragon Magazine #348)
Wizard 15 (Fleshcrafter ACF) – +1 DC to spellcs cast on living creatures (Dragon Magazine #312)
[I]Prestige Classes
[B]Arcane Prestige Classes
Class
ECL for Bonus to DCs
Alignment
Spellcasting Progression
Bonus Description
Sourcebook
Cataclysm Mage 7
9/10
+1 DC enchantment (charm) spells
Explorer's Handbook
Dancer of Sharess 7
ECL 13
10/10
+2 DC enchantment spells
Dragon #290
Divine Oracle 1
ECL 6
10/10
+1 DC scrying spells
Complete Divine
Dragon Mystic 3
ECL 8
5/5
+2 DC enchantment spells or spells same type of energy damage as damaging breath weapon
Dragon #297
Dread Witch
ECL 4, 7
4/5
+1/+2 DC for Fear spells
Heroes of Horror
Dungeon Lord 5
ECL 10
0/5
+1 DC while in your dungeon against intruders
Complete Scoundrel
Elemental Savant 5, 10
ECL 10, 15
8/10
+1/+2 DC for chosen energy descriptor
Complete Arcane
Eunuch Warlock 1
ECL 11
Any Evil
See Class
+4 DC from any Spell Focus feat (can include multiple feats)
Dragon #297
Fatespinner 1
ECL 8
4/5
Add fatespin bonus of 1-5 to spell DC
Complete Arcane
Fatespinner 2
ECL 9
4/5
Make an enemy reroll, including a save reroll
Complete Arcane
Fatespinner 5
ECL 12
4/5
Make enemy to take -10 on next saving throw
Complete Arcane
Halruaan Elder 1
ECL 12
10/10
Circle Link - Add Heighten Spell to spell
Shining South
Hathran 5
ECL 12
LG, LN, NG
10/10
Circle Leader, Great Circle Leader - Add Heighten Spell to spell
Player's Guide to Faerun
Insidious Corruptor 6
ECL 13
Nonlawful
5/10
Release a subject to increase save DC of Charm spell by Cha modifier
Drow of the Underdark
Insidious Corruptor 7
ECL 14
Nonlawful
5/10
Makes subject cast spell at +2 DC at target you indicate
Drow of the Underdark
Insidious Corruptor 9
ECL 16
Nonlawful
5/10
Release a subject to increase save DC of Compulsion spell by Cha modifier
Drow of the Underdark
Keeper of the Cerulean Sign 2
ECL 7
10/10
+6 DC to spells that deal damage to aberrations, half class levels/day
Lords of Madness
Knight of the Chalice 4
ECL 12
LG
Independent, 4ths
+2 DC against evil outsiders
Complete Mage
Lifedrinker 3
ECL 6
Any Evil
Heighten Spell by using Lifepool points
Book of Vile Darkness
Magical Trickster 3
ECL 8
2/3
+1 DC on spell in same round you perform a skill trick
Complete Scoundrel
Master Specialist 4
ECL 7
10/10
+ 2 DC on " will disbelief" illusion spells
Complete Mage
Mind Mage 3, 9, 10
8/10, 8/10
3 - Increase spell DC by +1 if PP is 5 or higher
9 - Increase spell DC by +2 if PP is 10 or higher
10 - Add the key modifier to psionic and spellcasting together to psi-spell abilities (if it's the same modifier, double it).
Dragon Magazine 313
Paragnostic Apostle 1-5
ECL 6-10
5/5
Backhanded Attack, spells with extra save against nondamaging effect, add 1 to DC
Complete Champion
Paragnostic Apostle 1-5
ECL 6-10
5/5
Discern Weakness Attack, +1 DC for spells against specific enemy type
Complete Champion
Paragnostic Apostle 1-5
ECL 6-10
5/5
Noble Prescence, +1 DC for spells that affect the subject’s emotions but don’t specify actions
Complete Champion
Paragnostic Apostle 1-5
ECL 6-10
5/5
See through the Veil, +1 DC for necromancy spells that target undead
Complete Champion
Rage Mage 5, 10
Nonlawful
5/10
Angry Spell +2/+4 DC when raging for abujuration, conjuration, evocation, necromancy, transmutation
Complete Warrior
Red Wizard 5
ECL 10
Nongood
10/10
Circle Leader - Add Heighten Spell to spell
Dungeon Master's Guide
Soulcaster 1, 7
ECL 6, 12
10/10, 10/10
Invest 1/2 essential in a spell to boost CL and DC by 1/2
Savage Species
Sybil 1
ECL 8
0/10
Add Sybil class level to WIS for spell DC for divine casters
Savage Species
Thrall of Fraz-Urb'luu 1, 3, 5, 7, 9
ECL 8, 10, 12, 14, 16
CE
7/10
+1 DC profane bonus for Illuision spells 1/day to 5/day
Dragon #333 p32
Thrall of Dagon
ECL 10
CE
8/10
+1 DC from Language-Dependent spells
Dragon #349 p36
Thrall of Malcanthet 4, 8
ECL 10, 14
CE
7/10
+1, +2 DC profane bonus for Language-Dependent spells
Dragon #353 p30
Wild Soul 8
ECL 13
Nonlawful
9/10
+1 DC illusion spells
Complete Mage
Wild Soul 10
ECL 15
Nonlawful
9/10
+1 DC enchantment spells
Complete Mage
Divine Prestige Classes
Class
ECL for Bonus to DCs
Alignment
Spellcasting Progression
Bonus Description
Sourcebook
Divine Oracle 1
ECL 6
10/10
+1 DC scrying spells
Complete Divine
Divine Prankster 2
ECL 7
10/10
Spend Turn/rebuke attempt to add 10 to DC to disbelieve illusion spells
Races of Stone
Dread Witch
ECL 4, 7
4/5
+1/+2 DC for Fear spells
Heroes of Horror
Dungeon Lord 5
ECL 10
0/5
+1 DC while in your dungeon against intruders
Complete Scoundrel
Elemental Savant 5, 10
ECL 10, 15
8/10
+1/+2 DC for chosen energy descriptor
Complete Arcane
Fatespinner 1
ECL 8
4/5
Add fatespin bonus of 1-5 to spell DC
Complete Arcane
Fatespinner 2
ECL 9
4/5
Make an enemy reroll, including a save reroll
Complete Arcane
Fatespinner 5
ECL 12
4/5
Make enemy to take -10 on next saving throw
Complete Arcane
Hathran 5
ECL 12
LG, LN, NG
10/10
Circle Leader, Great Circle Leader - Add Heighten Spell to spell
Player's Guide to Faerun
Insidious Corruptor 6
ECL 13
Nonlawful
5/10
Release a subject to increase save DC of Charm spell by Cha modifier
Drow of the Underdark
Insidious Corruptor 7
ECL 14
Nonlawful
5/10
Makes subject cast spell at +2 DC at target you indicate
Drow of the Underdark
Insidious Corruptor 9
ECL 16
Nonlawful
5/10
Release a subject to increase save DC of Compulsion spell by Cha modifier
Drow of the Underdark
Keeper of the Cerulean Sign 2
ECL 7
10/10
+6 DC to spells that deal damage to aberrations, half class levels/day
Lords of Madness
Knight of the Chalice 4
ECL 12
LG
Independent, 4ths
+2 DC against evil outsiders
Complete Mage
Magical Trickster 3
ECL 8
2/3
+1 DC on spell in same round you perform a skill trick
Complete Scoundrel
Paragnostic Apostle 1-5
ECL 6-10
5/5
Backhanded Attack, spells with extra save against nondamaging effect, add 1 to DC
Complete Champion
Paragnostic Apostle 1-5
ECL 6-10
5/5
Discern Weakness Attack, +1 DC for spells against specific enemy type
Complete Champion
Paragnostic Apostle 1-5
ECL 6-10
5/5
Noble Prescence, +1 DC for spells that affect the subject’s emotions but don’t specify actions
Complete Champion
Paragnostic Apostle 1-5
ECL 6-10
5/5
See through the Veil, +1 DC for necromancy spells that target undead
Complete Champion
Planar Shepherd 5
ECL 10
10/10
Planar Bubble - Allows you to cast a bubble of the Negative Energy Plane, which bestows negative levels, no save
Complete Champion
Sybil 1
ECL 8
0/10
Add Sybil class level to WIS for spell DC for divine casters
Savage Species
Thrall of Fraz-Urb'luu 1, 3, 5, 7, 9
ECL 8, 10, 12, 14, 16
CE
7/10
+1 DC profane bonus for Illuision spells 1/day to 5/day
Dragon #333 p32
Thrall of Dagon
ECL 10
CE
8/10
+1 DC from Language-Dependent spells
Dragon #349 p36
Feats
See “Changing Spell Types” in this thread (Raising Caster Level ( https://forums.giantitp.com/showthread.php?654710-Raising-Caster-Level)) for information about ways to change or add new spell descriptors to take advantage of some options here.
Aberration Banemagic – +2 DC to spells that deal damage to aberrations (Lords of Madness)
Arcane Consumption – +4 bonus to spell DC on next spell you cast, become fatigued with -4 penalty to Con (Player’s Handbook II)
Battle Magic Tactics – for every spell with a saving throw cast on an enemy, that enemy takes a -1 against anyone you or else with Battle Magic Tactics until the end of the round. (Monster Manual 5, p. 84)
Battlecaster Offense – deal combat damage to foe for +1 DC to spells targeting that foe next round (Complete Mage)
Blood Sorcerer – +3 DC to all Maho-Tsukai spells cast (Oriental Adventure)
Captivating Melody – sacrifice bardic music for +2 DC on enchantment and illusion spells (Complete Mage)
Charmer – +1 DC to all spells from Enchantment (Charm) subschool. Stacks with Spell Focus. (Dragon #325)
Circle Magic – allows multiple casters to add Heighten Spell to cast spell (Ghostwalk)
Cold Focus – +1 DC cold descriptor spells (Frostburn)
Cold Focus, Greater – +1 DC cold descriptor spells ( Frostburn)
Commanding – +1 DC to all spells from Enchantment (Compulsion) subschool. Stacks with Spell Focus. (Dragon Compendium)
Cooperative spell (metamagic) – add 2 to the DC when cast with another person, additional +1 for each extra person (Complete Arcane)
Corrupt Arcane Studies – +1 DC for Sorcerer or Wizard spells, some drawbacks (Ghostwalk)
Demonic Conduct – +1 DC against lawful or good targets, or +2 DC against lawful good targets (Fiendish Codex)
Draconic Power – +1 DC to spells of Draconic Heritage Energy Type (Acid, Cold, Charm, Electric, Fire, Force, Light, Poison or Disease, Sonic) (also increases caster level by 1)
Draconic Aura (Energy) – +1 to +4 to DC of spells of acid, cold, electricity or fire. Various ways to increase this bonus. See also Dragonblooded feat. (Dragon Magic)
Earth Spell – Heighten Spell adds a further +1 DC to heightened spells
Enchanting Song – spend bardic music use to add +1 to DC of enchantment spell (Races of Stone)
Enemy of Good – +2 DC to saves against good subtype creatures, or creatures with aura of good (Elder Evils)
Fey Power – +1 DC to enchantment spells (Complete Mage)
Fiendish Power – +1 DC evil descriptor spells (Complete Mage)
Giant Banemagic – +2 DC against giants (Secrets of Xen'drik)
Heighten Spell (Metamagic) Increase spell level to increase spell DC (Player’s Handbook)
Hellsworn – +1 DC to evil descriptor spells 1/ encounter (Exemplars of Evil)
Heroes of Horror – Corrupt Spell Focus: feat, +1 DC for spells with corrupt component
Heroes of Horror – Greater Corrupt Spell Focus: feat, +1 DC for spells with corrupt component
Holy Potency – +Cha bonus to save against cure or inflict spell (Complete Champion)
Malign Spell Focus – +2 DC of evil descriptor spells (Book of Vile Darkness)
Manifest Druid – +1 DC of spells involving disease or poison (Player's Guide to Eberron)
Metamagic Vigor – feat, cast two spells enchanced by metamagic in consecutive rounds, +1 DC for second spell (Complete Mage)
Misleading Song - spend bardic music use to add +1 to DC of illusion spell (Races of Stone)
Named Spell (Metamagic) +2 to save DC of spells with Truespeak check that target a single enemy (Dragon 346, p88)
Named Spell, Greater (Metamagic) +2 to save DC of spells with Truespeak check that target a single enemy, stacks with Named Spell (Dragon 346, p88)
Nocturnal Caster – +1 DC to specific school of magic when casting at night (Tome of Magic)
Pious Spellsurge – +1d6 DC with 2 faith points spent (Complete Divine)
Planar Touchstone feat (Stormvault site), +1 DC to spells involving rain, wind, lightning or clouds (Planar Handbook)
Sanctum Spell – raises spell level by 1 when cast in your sanctum (Complete Arcane)
Shadow Trickster – +2 DC illusion spells when in Shadow Hand stance (Tome of Battle)
Spell Focus (Good, Evil, Chaos, Law) – feat, +1 DC to alignment descriptor spells, does not stack with other spell focus feats (Complete Divine)
Spell Focus Good – (likely superseded by Complete Divine feat of same name) by +2 DC of good descriptor spells (Book of Exalted Deeds)
Spell Focus – +1 DC to chosen spell school (Player’s Handbook)
Spell Focus, Greater – +1 DC to chosen spell school (Player’s Handbook)
Spell Rehersal – cumulative +1 DC to spell cast in succesion 2 or more times
Tattoo Focus – +1 DC on specialized school spells (Dungeon Master’s Guide)
Vow of Non-violence – +4 DC for non-damaging spells (Book of Exalted Deeds)
Spells
Breath of the Jungle (Druid 1) – creates a mist, DC increases by 2 within mist (Spell Compendium)
Harmonic Chorus (Bard 3) – +2 morale bonus to spell DC (Spell Compendium)
Mystic Surge (Sorcerer 4, Wizard 4) – +2 DC to next spell cast by subject (Player's Handbook 2)
Spell Enhancer (Sorcerer 4, Wizard 4) – swift action, the next
spell you cast has +1 DC (and 2 CL) (Spell Compendium)
Items, Permanent
Alphabetical
Amulet of Fearsome Might 11K gold, +2 DC to fear spells, does not stack with Spell Focus (Dragon Magic)
Blood Face of Erythnul 100G, focus, +1 DC to illusion spells or spells with the Chaos descriptor (Complete Champion)
Greater Crystal of Arcane Steel 6K gold, Weapon Augment Crystal, +1 DC for touch channeled through weapon (Magic Item Compendium)
Icemail Armor 52K gold, +2 DC to Cold spells (Web (https://web.archive.org/web/20030417030108/http://www.wizards.com/default.asp?x=dnd/fw/20030323a))
Moradin's Forge 100G focus, +1 DC earth domain or earth descriptor spells (Complete Champion)
Regalia of Evil Unpriced, Artifact set, +2 DC to spells (Book of Vile Darkness)
Vecna's hand and eye 100G focus, +1 DC knowledge and magic domain spells (Complete Champion)
Veil of Allure: 14K gold, Item, +2 DC to enchantment spells (Magic Item Compendium )
Vest of Master Evoker 10K gold, +2 to spell DCs 3/day (Magic Item Compendium)
Wrymbane Helm Unpriced, Legacy Item, +2 DC to spells targeting dragons (Dragon Magic)
By Price
Blood Face of Erythnul 100G, focus, +1 DC to illusion spells or spells with the Chaos descriptor (Complete Champion)
Icemail Armor 52K gold, +2 DC to Cold spells (Web (https://web.archive.org/web/20030417030108/http://www.wizards.com/default.asp?x=dnd/fw/20030323a))
Moradin's Forge 100G focus, +1 DC earth domain or earth descriptor spells (Complete Champion)
Vecna's Hand and Eye 100G focus, +1 DC knowledge and magic domain spells (Complete Champion)
Greater Crystal of Arcane Steel 6K gold, Weapon Augment Crystal, +1 DC for touch channeled through weapon (Magic Item Compendium)
Vest of Master Evoker 10K gold, +2 to spell DCs 3/day (Magic Item Compendium)
Amulet of Fearsome Might 11K gold, +2 DC to fear spells, does not stack with Spell Focus (Dragon Magic)
Veil of Allure: 14K gold, Item, +2 DC to enchantment spells (Magic Item Compendium )
Regalia of Evil Unpriced, Artifact set, +2 DC to spells (Book of Vile Darkness)
Wrymbane Helm Unpriced, Legacy Item, +2 DC to spells targeting dragons (Dragon Magic)
Items, Consumables
Alphabetical
Angel Radiance 20G, +1 DC spell component, for spells of dismissal, banishment, dispel evil or to drive out evil fiends (Book of Exalted Deeds)
Angel's Blood 85GP, +1 DC component, evil desrciptor spells (Complete Champion)
Coutl Scale 16GP, possible +1 DC spell component, 30% chance of raising DC by 1 (Book of Exalted Deeds)
Crypt Powder 150GP, +1 DC component, spells targeting undead (Complete Champion)
Essence of Order 300GP component, +1 DC law descriptor spells (Complete Champion)
Lillend Scale 15GP, possible +L1 DC spell component, if spell requires a will save, 40% chance, 60% if caster is bard (Book of Exalted Deeds)
Metallic Dragon Heart 7GP, possible +1 DC component, 30% chance to increase DC by 1 (Book of Vile Darkness)
Soul in Larva Form 250GP, +2 DC component (Book of Vile Darkness)
Unicorn Blood 500G, possible +1 DC spell component, if spell requires a fort save, 40% chance to raise DC by 1 (Book of Exalted Deeds)
By Price
Metallic Dragon Heart 7GP, possible +1 DC component, 30% chance to increase DC by 1 (Book of Vile Darkness)
Lillend Scale 15GP, possible +L1 DC spell component, if spell requires a will save, 40% chance, 60% if caster is bard (Book of Exalted Deeds)
Coutl Scale 16GP, possible +1 DC spell component, 30% chance of raising DC by 1 (Book of Exalted Deeds)
Angel Radiance 20G, +1 DC spell component, for spells of dismissal, banishment, dispel evil or to drive out evil fiends (Book of Exalted Deeds)
Angel's Blood 85GP, +1 DC component, evil desrciptor spells (Complete Champion)
Crypt Powder 150GP, +1 DC component, spells targeting undead (Complete Champion)
Soul in Larva Form 250GP, +2 DC component (Book of Vile Darkness)
Essence of Order 300GP component, +1 DC law descriptor spells (Complete Champion)
Unicorn Blood 500G, possible +1 DC spell component, if spell requires a fort save, 40% chance to raise DC by 1 (Book of Exalted Deeds)
Other Spell DC Boosts
Energy (Draconic Aura) – +1 to +4 to DC of spells of acid, cold, electricity or fire. Various ways to increase this bonus. See also the Draconic Aura feat and Dragonblooded. (Dragon Magic)
Gnome Chanting Circle Rune circle, gives +1 DC to illusion spells cast by gnomes inside circle (Races of Stone)
Illusion Veil (brow soulmeld) – +1 DC to illusion spells (Magic of Incarnum)
Magestone (material) – +1 DC (Dungeonscape)
Monster of Legend (template) – +4 DC (Monster Manual II)
Necropolis of Dread (location) – +1 DC fear spells (Dungeon Master's Guide II)
Ocrus-Blooded (template) – +1 DC for Necromancy spells (Monster Manual V)
Planar Bubble (combo) – Cast Planar Bubble on a Xeg-Yi, which is an outsider native to the Negative Energy Plane. The area for 20 feet around it then behaves like the Negative Energy Plane, i.e. bestows negative levels once per round (no save) on anything standing in it.
Saint (Template) – +2 DC to all spells (Book of Exalted Deeds)
Sharulhensa, the Alabaster Towers (affiliation) – +1 DC to enchantment spells, (score 15-22) (Player’s Handbook II)
Spell Barrage (teamwork benefit) – when a team member casts a spell needing a reflex save, all enemies take a -2 on subsequent reflex saves made due to other team members, and functions whether or not opponent makes save.
Temptation (domain) – +1 DC to mind affecting spells against a chosen gender (Fiendish Codex)
Tyranny (domain) – +1 DC compulsion descriptor spells (Complete Warrior)
Unnatural Aura (trait) – +2 to spells with Fear descriptor (Dragon Magazine 356, p89)
Unseelie Fey (template) – Living, nonfey creatures within 5ft suffer a morale penalty to saves equal to character's CHA bonus. (Dragon Compendium).
Vale of Smoke and Fog (location), +1 DC illusion spells (Complete Mage)
Spells with Nonstandard DCs
These spells scale with Casting Level. Here (https://forums.giantitp.com/showthread.php?654710-Raising-Caster-Level) is a thread about how to boost Caster Level.
Kiss of Death (Druid 5) – Does 1d10 Constitution damage, and second 1d10 Constitution damage a minute later. DC is 10 + 1/2 Caster level + WIS Modifier
Mind Poison (Sorcerer 3, Wizard 3) – Does 1d10 Wisdom damage, and second 1d10 Wisdom damage a minute later. DC is 10 + 1/2 Caster Level + INT or CHA Modifier)
Poison (various 3) – Does 1d10 Constitution damage, and second 1d10 Constitution damage a minute later. DC is 10 + 1/2 Caster level + WIS Modifier
Poison Thorns (Druid 5) – Does 1d4 Strength damage, and second 1d4 Strength damage a minute later. DC 10 + 1/2 Caster Level + WIS Modifier)
Spider Poison (Assassin 3, Sorcerer 3, Wizard 3) – Does 1d6 Strength damage, and second 1d6 Strength damage a minute later. DC is 10 + 1/2 Caster level + INT or CHA Modifier