Are there any guides on boosting save DCs for spells?

[pabelfly]

Are there any guides or handbooks for increasing spell save DCs? I can't seem to find anything and it's something I'd like to use for a potential character (and I might even make it myself if it doesn't exist).

[Saintheart]

If your handbook is as terrifyingly complete as the adding spells and raising caster levels threads you did, I am going to unironically hope you are utterly dissatisfied with the response you get and proceed to write the ultimate guide on the subject. :) :)

[pabelfly]

If your handbook is as terrifyingly complete as the adding spells and raising caster levels threads you did, I am going to unironically hope you are utterly dissatisfied with the response you get and proceed to write the ultimate guide on the subject. :) :)

Okay, that made me laugh. I suppose it would be fitting if I had to do it too - the three things any spellcaster wants are more caster levels, more spells and better spell save DCs.

[Anthrowhale]

I haven't seen a thread.

Some strong moves are:

Circle Magic Heighten to L20.
Owl's Insight, particularly with caster level boosting.
Stripping Refl saves from instantaneous AoEs via Spellwarp.

[Morof Stonehands]

I had started making myself a reference a while ago, so here is what I have. It is far from complete, but a solid start. Books that don't have anything under neath them didn't have anything that I could find inside, but maybe someone with keener eyes than me will.

Book of Exalted Deeds

Pg 37 - Angel radiance: spell component for dismissal, banishment, dispel evil to drive out evil fiend, +1 DC
Pg 37 - Coutl scale: component, 30% chance of raising DC by 1
Pg 37 - Lillend Scale: component, if spell requires a will save, 40% chance to raise by 1, 60% if caster is bard
Pg 38 - Unicorn Blood: component, if spell requires a fort save, 40% chance to raise DC by 1
Pg 46 - Spell Focus Good: feat, +2 DC of good descriptor spells
Pg 47 - Vow of Non-violence: +4 DC for non-damaging spells

Book of Vile Darkness
Pg 46 - Metallic Dragon Heart: component, 30% chane to increase DC by 1 (BoVD)
Pg 46 - Soul in larva form: component, raises DC by 2
Pg 49 - Malign Spell Focus: feat, +2 DC of evil descriptor spells
Pg 63 - Life drinker 3: prestige class, free heighten spell
Pg 122 - Regalia of evil: artifact set +2 DC

Cityscape

Complete Adventurer
Pg 150 - Harmonic Chorus: spell, +2 morale bonus to one spellcaster

Complete Arcane
Pg 33 - Elemental Savant 5, 10: prestige class, +1 DC for chosen energy descriptor
Pg 38 - Fatespinner 1: prestige class, add bonus to spell DC
Pg 76 - Cooperative spell: feat, add 2 to the DC when cast with another person, additional +1 for each extra person
Pg 78 - Draconic Power: feat, +1 DC for spells with chosen energy type
Pg 82 - Sanctum Spell: raises spell level by 1 when cast in your sanctum
pg 192 - Epic Spell Focus: +1 DC to specific school

Comlete Champion
Pg 59 - Holy Potency: feat, +Cha bonus to save against cure or inflict spell
Pg 95 - Paragnostic Apostle: prestige class, +1 DC to save to resist non damaging effect
Pg 95 - Paragnostic Apostle: prestige class, +1 DC to save against certain creature type
Pg 96 - Paragnostic Apostle: prestige class, +1 DC to save against emotioin changing spells
Pg 96 - Paragnostic Apostle: prestige class, +1 DC to save against necromancy spell targeting undead
Pg 131 - Angel's Blood: component, +1 DC for evil desrciptor spells
Pg 132 - Crypt Powder: component, +1 DC to spells targeting undead
Pg 132 - Essence of Order: component, +1 DC law descriptor spells
Pg 133 - Blood Face of Erythnul: focus, +1 DC to illusion spells or spells with chaos descriptor
Pg 134 - Moradin's Forge: focus, +1 DC earth domain or earth descriptor spells
Pg 135 - Vecna's hand and eye: focus, +1 DC knowledge and magic domain spells

Complete Divine
Pg 13 - Shugenja: class, +1 DC (Spell Focus) for element type
Pg 34 - Divine Oracle: +1 DC scrying spells
Pg 84 - Spell Focus (Good, Evil, Chaos, Law): feat, +1 DC to alignment descriptor spells, does not stack with other spell focus feats
Pg 87 - Pious Spellsurge: feat, +1d6 DC with 2 faith points spent

Complete Mage
Pg 86 - Wild Soul 8: prestige class, +1 DC illusion spells
Pg 86 - Wild Soul 10: prestige class, +1 DC enchantment spells
Pg 40 - Battlecaster Offense: feat, deal combat damage to foe, +1 DC to spells targeting that foe next round
Pg 40 - Captivating Melody: feat, sacrifice bardic music for +2 DC on enchantment and illusion spells
Pg 43 - Fey Power: feat, +1 DC to enchantment spells
Pg 43 - Fiendish Power: feat, +1 DC evil descriptor spells
Pg 45 - Metamagic Vigor: feat, cast two spells enchanced by metamagic in consecutive rounds, +1 DC for second spell
Pg 70 - Master Specialist 4: prestige class, + 2 DC on " will disbelief" illusion spells
Pg 156 - Vale of Smoke and Fog: location, +1 DC illusion spells

Complete Psionic

Complete Scoundrel
Pg 45 - Magical Trickster 3: prestige class, +1 DC on spell in same round you perform a skill trick

Complete Warrior
Pg 54 - Knight of the Chaice 4: prestige class, +2 DC against evil outsiders
Pg 73 - Rage Mage 5, 10: prestige class, +2 DC when raging for abujuration, conjuration, evocation, necromancy, transmutation
Pg 115 - Tyranny Domain: cleric domain, +1 DC compulsion descriptor spells

Deities and Demigods

Draconimicon
Pg 94 - Elemental Master 3, 6, 9, 12: prestige class, +1 DC to energy type spells

Dragon Magic
Pg 87 - Energy Draconic Aura: aura, adds bonus to save DC of spells with chosen energy descriptor or spells that deal damage of the chosen type
Pg 93 - Amulet of Fearsome Might: item, +2 DC to fear spells, does not stack with Spell Focus
Pg 106 - Wrymbane Helm: item, +2 DC to spells targeting dragons

Drow of the Underdark
Pg 84 - Insidious Corrupter 6: prestige class, release a subject to add Cha modifier to next enchantment (charm) spell
Pg 84 - Insidious Corrupter 7: prestige class, force subject to cast spell at +2 DC at target you indicate
Pg 85 - Insidious Corrupter 9: prestige class, release subject to add Cha modifier to next enchantment (compulsion) spell

Dungeon Master's Guide
Pg 194 - Tatoo Focus: feat, +1 DC on specialized school spells

Dungeon Master's Guide 2
Pg 246 - Necropolis of Dread: location, +1 DC fear spells

Dungeonscape
Pg 24 - Mage Stone: material, anyone standing on mage stone gets +1 DC
Pg 109 - Dungeon Lord 5: prestige class, +1 DC while in your dungeon

Elder Evils
Pg 13 - Enemy of Good: feat, +2 DC to saves against good subtype creatures, or creatures with aura of good

Enemies and Allies

Epic Level Handbook

Exemplars of Evil
Pg 25 - Hellsworn: feat, +1 DC to evil descriptor spells 1/ encounter

Expanded Psionics Handbook

Fiend Folio

Fiendish Codex 1
Pg 85 - Demonic Conduct: feat, +1 DC against lawful or good targets, or +2 DC against lawful good targets
Pg 90 - Temptation Domain: domain, +1 DC to mind affecting spells against a chosen gender

Fiendish Codex 2

Frostburn
Pg 47 - Cold Focus: feat, +1 DC cold descriptor spells
Pg 48 - Greater Cold Focus: feat, +1 DC cold descriptor spells

Heroes of Battle

Heroes of Horror
Pg 98 - Dread Witch 1: prestige class, +1 DC fear descriptor spells
pg 99 - Dread Witch 4: prestige class, +1 DC fear descriptor spells
Pg 120 - Corrupt Spell Focus: feat, +1 DC for spells with corrupt component
Pg 123 - Greater Corrupt Spell Focus: feat, +1 DC for spells with corrupt component

Libris Mortis

Lords of Madness
Pg 178 - Aberratioin Banemagic: feat, +2 DC to spells that deal damage to aberrations
Pg 195 - Keeper of the Cerulean Sign 2: prestige class, +6 DC to spells that deal damage to aberrations #/day

Magic Item Compendium
Pg 64 - Greater Crystal of Arcane Steel: item, +1 DC to spells delivered through melee attack with melee weapon crystal is attached to
Pg 145 - Veil of Allure: item, +2 DC to enchantment spells
Pg 146 - Vest of the Master Evoker: item, +2 DC to evocation spell 3/day

Magic of Incarnum
Pg 71 - Illusion Veil: soulmeld, +1 DC to illusion spells
Pg 143 - Soulcaster 1: prestige class, invest 1 essentia into a single spell to increase it's DC and caster level by 1
Pg 144 - Soulcaser 7: prestige class, invest 2 essentia into the spell to increase casterlevel and DC by 2

Monster Manual
Pg 132 - Svirfneblin: monster, +1 DC illusion spells

Monster Manual 2
Pg 214 - Monster of Legend: template, +4 DC

Monster Manual 3

Monster Manual 4
Pg 195 - Zern: creature, +4 DC transmutation spells

Monster Manual 5
Pg 66 - Ocrus-Blooded: template, +1 necromancy spells
Pg 87 - Hobgoblin Warsoul: creature, use Soul Tyrant (Su) to draw life out of hobgoblin ally, add +2 DC to next spell cast
Pg 93 - Jaebrin: creature, +1 DC enchantment spells
Pg 184 - Arkamoi: creature, +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.

Planar Handbook
Pg 36 - Planar Wizard 10: substitution level, +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
Pg 168 - Stormvault - Planar Touchstone feat site, +1 DC to spells involving rain, wind, lightning or clouds

Player's Handbook
Pg 8 - Gnome: race, +1 DC to illusion spells
Pg 95 - Greater Spell Focus: +1 DC to chosen school
Pg 101 - Spell Focus: +1 DC to chosen school

Player's Handbook 2
Pg 7 - Beguiler 2 , 14: class, +1 DC to spells vs foes with denied Dex to AC
Pg 74 - Arcane Consumption: feat, +4 bonus on next spell you cast, become fatigued with -4 penalty to Con
Pg 120 - Mystic Surge: spell, +2 DC to next spell cast by subject
Pg 179 - Sharulhensa, the Alabaster Towers: affiliation, +1 DC to enchantment spells, (score 15-22)

Races of Destiny
Pg 55 - Illumian: race, naenkrau sigil, leave up to two spell slots open to give +1 DC to all other spells of that level

Races of Stone
Pg 108 - Divine Prankster 2: prestige class, spend turn/rebuke attempt to add 10 to DC of illsion to disbelieve
Pg 139 - Enchanting Song: feat, spend bardic music use to add +1 to DC of enchantment spell
Pg 142 - Misleading Song: feat, spend bardic music use to add +1 to DC of illusion spell
Pg 147 - Dwarf Sorcerer 5: racial substitution level, +1 DC to spell where he and opponent are touching ground
Pg 169 - Gnome Chanting Circle: rune circle, +1 DC to illusion spells cast by gnomes inside circle

Races of the Dragon
Pg 104 - Draconic Power: feat, +1 DC to arcane spells with the descriptor or subschool associated with your heritage
Pg 105 - Spell Rehersal: feat, cumulative +1 DC to spell cast in succesion 2 or more times

Races of the Wild

Sandstorm

Savage Species
Pg 91 - Sybil 1: prestige class, add class level to wisdom to determine divine spell DC

Spell Compendium
Pg 198 - Spell Enhancer: spell, the next spell you cast has +1 DC

Stronghold Builder's Guidebook

Tome of Battle
Pg 32 - Shadow Trickster: feat, +2 DC illusion spells when in Shadow Hand stance

Tome of Magic
Pg 137 - Nocturnal Caster: feat, +1 DC to specific school of magic when casting at night

Unearthed Arcana
Pg 60 - Diviner: wizard alternate class feature, give up familiar to gain +1 DC to divination spells
Pg 63 - Illusionist 10: wizard alternate class feature, give up bonus feat, gain +1 DC to illusion spells

[Buufreak]

All I have generally is boost your caster stat?

[pabelfly]

I had started making myself a reference a while ago, so here is what I have. It is far from complete, but a solid start. Books that don't have anything under neath them didn't have anything that I could find inside, but maybe someone with keener eyes than me will.

Book of Exalted Deeds

Pg 37 - Angel radiance: spell component for dismissal, banishment, dispel evil to drive out evil fiend, +1 DC
Pg 37 - Coutl scale: component, 30% chance of raising DC by 1
Pg 37 - Lillend Scale: component, if spell requires a will save, 40% chance to raise by 1, 60% if caster is bard
Pg 38 - Unicorn Blood: component, if spell requires a fort save, 40% chance to raise DC by 1
Pg 46 - Spell Focus Good: feat, +2 DC of good descriptor spells
Pg 47 - Vow of Non-violence: +4 DC for non-damaging spells

Book of Vile Darkness
Pg 46 - Metallic Dragon Heart: component, 30% chane to increase DC by 1 (BoVD)
Pg 46 - Soul in larva form: component, raises DC by 2
Pg 49 - Malign Spell Focus: feat, +2 DC of evil descriptor spells
Pg 63 - Life drinker 3: prestige class, free heighten spell
Pg 122 - Regalia of evil: artifact set +2 DC

Cityscape

Complete Adventurer
Pg 150 - Harmonic Chorus: spell, +2 morale bonus to one spellcaster

Complete Arcane
Pg 33 - Elemental Savant 5, 10: prestige class, +1 DC for chosen energy descriptor
Pg 38 - Fatespinner 1: prestige class, add bonus to spell DC
Pg 76 - Cooperative spell: feat, add 2 to the DC when cast with another person, additional +1 for each extra person
Pg 78 - Draconic Power: feat, +1 DC for spells with chosen energy type
Pg 82 - Sanctum Spell: raises spell level by 1 when cast in your sanctum
pg 192 - Epic Spell Focus: +1 DC to specific school

Comlete Champion
Pg 59 - Holy Potency: feat, +Cha bonus to save against cure or inflict spell
Pg 95 - Paragnostic Apostle: prestige class, +1 DC to save to resist non damaging effect
Pg 95 - Paragnostic Apostle: prestige class, +1 DC to save against certain creature type
Pg 96 - Paragnostic Apostle: prestige class, +1 DC to save against emotioin changing spells
Pg 96 - Paragnostic Apostle: prestige class, +1 DC to save against necromancy spell targeting undead
Pg 131 - Angel's Blood: component, +1 DC for evil desrciptor spells
Pg 132 - Crypt Powder: component, +1 DC to spells targeting undead
Pg 132 - Essence of Order: component, +1 DC law descriptor spells
Pg 133 - Blood Face of Erythnul: focus, +1 DC to illusion spells or spells with chaos descriptor
Pg 134 - Moradin's Forge: focus, +1 DC earth domain or earth descriptor spells
Pg 135 - Vecna's hand and eye: focus, +1 DC knowledge and magic domain spells

Complete Divine
Pg 13 - Shugenja: class, +1 DC (Spell Focus) for element type
Pg 34 - Divine Oracle: +1 DC scrying spells
Pg 84 - Spell Focus (Good, Evil, Chaos, Law): feat, +1 DC to alignment descriptor spells, does not stack with other spell focus feats
Pg 87 - Pious Spellsurge: feat, +1d6 DC with 2 faith points spent

Complete Mage
Pg 86 - Wild Soul 8: prestige class, +1 DC illusion spells
Pg 86 - Wild Soul 10: prestige class, +1 DC enchantment spells
Pg 40 - Battlecaster Offense: feat, deal combat damage to foe, +1 DC to spells targeting that foe next round
Pg 40 - Captivating Melody: feat, sacrifice bardic music for +2 DC on enchantment and illusion spells
Pg 43 - Fey Power: feat, +1 DC to enchantment spells
Pg 43 - Fiendish Power: feat, +1 DC evil descriptor spells
Pg 45 - Metamagic Vigor: feat, cast two spells enchanced by metamagic in consecutive rounds, +1 DC for second spell
Pg 70 - Master Specialist 4: prestige class, + 2 DC on " will disbelief" illusion spells
Pg 156 - Vale of Smoke and Fog: location, +1 DC illusion spells

Complete Psionic

Complete Scoundrel
Pg 45 - Magical Trickster 3: prestige class, +1 DC on spell in same round you perform a skill trick

Complete Warrior
Pg 54 - Knight of the Chaice 4: prestige class, +2 DC against evil outsiders
Pg 73 - Rage Mage 5, 10: prestige class, +2 DC when raging for abujuration, conjuration, evocation, necromancy, transmutation
Pg 115 - Tyranny Domain: cleric domain, +1 DC compulsion descriptor spells

Deities and Demigods

Draconimicon
Pg 94 - Elemental Master 3, 6, 9, 12: prestige class, +1 DC to energy type spells

Dragon Magic
Pg 87 - Energy Draconic Aura: aura, adds bonus to save DC of spells with chosen energy descriptor or spells that deal damage of the chosen type
Pg 93 - Amulet of Fearsome Might: item, +2 DC to fear spells, does not stack with Spell Focus
Pg 106 - Wrymbane Helm: item, +2 DC to spells targeting dragons

Drow of the Underdark
Pg 84 - Insidious Corrupter 6: prestige class, release a subject to add Cha modifier to next enchantment (charm) spell
Pg 84 - Insidious Corrupter 7: prestige class, force subject to cast spell at +2 DC at target you indicate
Pg 85 - Insidious Corrupter 9: prestige class, release subject to add Cha modifier to next enchantment (compulsion) spell

Dungeon Master's Guide
Pg 194 - Tatoo Focus: feat, +1 DC on specialized school spells

Dungeon Master's Guide 2
Pg 246 - Necropolis of Dread: location, +1 DC fear spells

Dungeonscape
Pg 24 - Mage Stone: material, anyone standing on mage stone gets +1 DC
Pg 109 - Dungeon Lord 5: prestige class, +1 DC while in your dungeon

Elder Evils
Pg 13 - Enemy of Good: feat, +2 DC to saves against good subtype creatures, or creatures with aura of good

Enemies and Allies

Epic Level Handbook

Exemplars of Evil
Pg 25 - Hellsworn: feat, +1 DC to evil descriptor spells 1/ encounter

Expanded Psionics Handbook

Fiend Folio

Fiendish Codex 1
Pg 85 - Demonic Conduct: feat, +1 DC against lawful or good targets, or +2 DC against lawful good targets
Pg 90 - Temptation Domain: domain, +1 DC to mind affecting spells against a chosen gender

Fiendish Codex 2

Frostburn
Pg 47 - Cold Focus: feat, +1 DC cold descriptor spells
Pg 48 - Greater Cold Focus: feat, +1 DC cold descriptor spells

Heroes of Battle

Heroes of Horror
Pg 98 - Dread Witch 1: prestige class, +1 DC fear descriptor spells
pg 99 - Dread Witch 4: prestige class, +1 DC fear descriptor spells
Pg 120 - Corrupt Spell Focus: feat, +1 DC for spells with corrupt component
Pg 123 - Greater Corrupt Spell Focus: feat, +1 DC for spells with corrupt component

Libris Mortis

Lords of Madness
Pg 178 - Aberratioin Banemagic: feat, +2 DC to spells that deal damage to aberrations
Pg 195 - Keeper of the Cerulean Sign 2: prestige class, +6 DC to spells that deal damage to aberrations #/day

Magic Item Compendium
Pg 64 - Greater Crystal of Arcane Steel: item, +1 DC to spells delivered through melee attack with melee weapon crystal is attached to
Pg 145 - Veil of Allure: item, +2 DC to enchantment spells
Pg 146 - Vest of the Master Evoker: item, +2 DC to evocation spell 3/day

Magic of Incarnum
Pg 71 - Illusion Veil: soulmeld, +1 DC to illusion spells
Pg 143 - Soulcaster 1: prestige class, invest 1 essentia into a single spell to increase it's DC and caster level by 1
Pg 144 - Soulcaser 7: prestige class, invest 2 essentia into the spell to increase casterlevel and DC by 2

Monster Manual
Pg 132 - Svirfneblin: monster, +1 DC illusion spells

Monster Manual 2
Pg 214 - Monster of Legend: template, +4 DC

Monster Manual 3

Monster Manual 4
Pg 195 - Zern: creature, +4 DC transmutation spells

Monster Manual 5
Pg 66 - Ocrus-Blooded: template, +1 necromancy spells
Pg 87 - Hobgoblin Warsoul: creature, use Soul Tyrant (Su) to draw life out of hobgoblin ally, add +2 DC to next spell cast
Pg 93 - Jaebrin: creature, +1 DC enchantment spells
Pg 184 - Arkamoi: creature, +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.

Planar Handbook
Pg 36 - Planar Wizard 10: substitution level, +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
Pg 168 - Stormvault - Planar Touchstone feat site, +1 DC to spells involving rain, wind, lightning or clouds

Player's Handbook
Pg 8 - Gnome: race, +1 DC to illusion spells
Pg 95 - Greater Spell Focus: +1 DC to chosen school
Pg 101 - Spell Focus: +1 DC to chosen school

Player's Handbook 2
Pg 7 - Beguiler 2 , 14: class, +1 DC to spells vs foes with denied Dex to AC
Pg 74 - Arcane Consumption: feat, +4 bonus on next spell you cast, become fatigued with -4 penalty to Con
Pg 120 - Mystic Surge: spell, +2 DC to next spell cast by subject
Pg 179 - Sharulhensa, the Alabaster Towers: affiliation, +1 DC to enchantment spells, (score 15-22)

Races of Destiny
Pg 55 - Illumian: race, naenkrau sigil, leave up to two spell slots open to give +1 DC to all other spells of that level

Races of Stone
Pg 108 - Divine Prankster 2: prestige class, spend turn/rebuke attempt to add 10 to DC of illsion to disbelieve
Pg 139 - Enchanting Song: feat, spend bardic music use to add +1 to DC of enchantment spell
Pg 142 - Misleading Song: feat, spend bardic music use to add +1 to DC of illusion spell
Pg 147 - Dwarf Sorcerer 5: racial substitution level, +1 DC to spell where he and opponent are touching ground
Pg 169 - Gnome Chanting Circle: rune circle, +1 DC to illusion spells cast by gnomes inside circle

Races of the Dragon
Pg 104 - Draconic Power: feat, +1 DC to arcane spells with the descriptor or subschool associated with your heritage
Pg 105 - Spell Rehersal: feat, cumulative +1 DC to spell cast in succesion 2 or more times

Races of the Wild

Sandstorm

Savage Species
Pg 91 - Sybil 1: prestige class, add class level to wisdom to determine divine spell DC

Spell Compendium
Pg 198 - Spell Enhancer: spell, the next spell you cast has +1 DC

Stronghold Builder's Guidebook

Tome of Battle
Pg 32 - Shadow Trickster: feat, +2 DC illusion spells when in Shadow Hand stance

Tome of Magic
Pg 137 - Nocturnal Caster: feat, +1 DC to specific school of magic when casting at night

Unearthed Arcana
Pg 60 - Diviner: wizard alternate class feature, give up familiar to gain +1 DC to divination spells
Pg 63 - Illusionist 10: wizard alternate class feature, give up bonus feat, gain +1 DC to illusion spells

Okay, guess I'll start working on a list. Thanks for the great start here, will be really useful.

[Saintheart]

Heighten Spell?