Stealing the innocence of children
Quote Originally Posted by Leilani
Leilani; Akutsukai Human Spellthief 8/Corrupt Avenger 10/Swordsage 1/Maho-Tsukai 1

Leilani was one of the famed Ninja's of the Scorpion Clan, her devotion to the Kami's of Fortune second to none; her ability was so good, it was said she could steal the very soul. Perhaps one day she did; we shall never know. One day, she left her monastery for the Shadowlands, never to be seen again. Some say she was possessed, others say she became disheartened by the never ending evil, and it is through that weakness that the darkness entered her.

None shall ever know, for even if she should still live, it is unlikely she will ever say.
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{table=head]Level|Class|Base Attack Bonus|Fort Save|Ref Save|Will Save|Skills|Feats|Class Features

1st|Spellthief 1|
+0
|
+0
|
+0
|
+2
|Appraise 4, Bluff 4, Concentration 4, Disable Device 4, K. Shadowlands 2 (cc), K. Planes 2 (cc), K. Arcana 4, Listen 4, Spellcraft 4, Sense Motive 2 (cc), Survival 2 (cc), Use Magic Device 4|Able Learner, Godsblood Spelltheft (Luck)|Sneak Attack +1d6, Steal Spell (0 or 1st), Trapfinding

2nd|Spellthief 2|
+1
|
+0
|
+0
|
+3
|Appraise 5, Bluff 5, Concentration 5, Disable Device 5, K. Shadowlands 2 (cc), K. Planes 2 (cc), K. Arcana 5, Listen 5, Spellcraft 5, Sense Motive 2 (cc), Spot 2, Survival 2 (cc), Use Magic Device 5||Detect Magic, Spellgrace +1, Steal Spell Effect

3rd|Spellthief 3|
+2
|
+0
|
+1
|
+3
|Appraise 5, Bluff 6, Concentration 6, Disable Device 6, K. Shadowlands 3 (cc), K. Planes 3, K. Arcana 6, Listen 6, Spellcraft 6, Sense Motive 2 (cc), Spot 2, Survival 3 (cc), Use Magic Device 6|Knowledge Devotion (The Planes)|Steal Energy Resistance 10

4th|Spellthief 4|
+3
|
+1
|
+1
|
+4
|Appraise 7, Bluff 7, Concentration 7, Disable Device 7, K. Shadowlands 3 (cc), K. Planes 3, K. Arcana 7, Listen 7, Spellcraft 7, Sense Motive 3 (cc), Survival 3 (cc), Spot 2, Use Magic Device 7||Steal Spell (2nd)

5th|Spellthief 5|
+3
|
+1
|
+1
|
+4
|Appraise 7, Bluff 8, Concentration 8, Disable Device 8, K. Shadowlands 4 (cc), K. Planes 4, K. Arcana 8, Listen 8, Spellcraft 8, Sense Motive 4 (cc), Survival 3 (cc), Spot 2, Use Magic Device 8||Sneak Attack (+2d6), Steal Spell-like Ability

6th|Spellthief 6|
+4
|
+2
|
+2
|
+5
|Appraise 9, Bluff 9, Concentration 9, Disable Device 9, K. Shadowlands 4 (cc), K. Planes 4, K. Arcana 9, Listen 9, Spellcraft 9, Sense Motive 4 (cc), Survival 4 (cc), Spot 3, Use Magic Device 9|Animal Devotion|Steal Spell (3rd)

7th|Spellthief 7|
+5
|
+2
|
+2
|
+5
|Appraise 9, Bluff 10, Concentration 10, Disable Device 10, K. Shadowlands 4 (cc), K. Planes 5, K. Arcana 10, Listen 10, Spellcraft 10, Sense Motive 5 (cc), Survival 5 (cc), Spot 3, Use Magic Device 10||Absorb Spell

8th|Spellthief 8|
+6/+1
|
+2
|
+2
|
+6
|Appraise 11, Bluff 11, Concentration 11, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 5, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 5 (cc), Survival 5 (cc), Spot 4, Use Magic Device 11|Touch of Taint|Steal Spell (4th), Moderate Corruption Bonus Feat

9th|Corrupt Avenger 1|
+6/+1
|
+2
|
+4
|
+8
|Appraise 11, Bluff 11, Concentration 11, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 11, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 5, Survival 5, Spot 4, Use Magic Device 11|Master Spellthief|Armored Casting, Detect Sworn Foe, Sworn Foe +2, Taint Suppression

10th|Corrupt Avenger 2|
+7/+2
|
+4
|
+4
|
+8
|Appraise 11, Bluff 11, Concentration 11, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 11, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 5, Survival 11, Spot 4, Use Magic Device 11||Tainted Strike 1/day

11th|Corrupt Avenger 3|
+8/+3
|
+5
|
+4
|
+8
|Appraise 11, Bluff 11, Concentration 11, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 11, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 5, Survival 11, Spot 10, Use Magic Device 11||Grim Resolve

12th|Corrupt Avenger 4|
+9/+4
|
+5
|
+5
|
+9
|Appraise 11, Bluff 11, Concentration 11, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 11, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 11, Survival 11, Spot 10, Use Magic Device 11|Track|Sworn Foe +4

13th|Corrupt Avenger 5|
+10/+5
|
+6
|
+5
|
+9
|Appraise 11, Bluff 11, Concentration 11, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 11, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 11, Survival 16, Spot 10, Use Magic Device 12||Frightful Fury

14th|Corrupt Avenger 6|
+11/+6/+1
|
+6
|
+5
|
+9
|Appraise 16, Bluff 11, Concentration 11, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 11, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 11, Survival 16, Spot 10, Use Magic Device 12||Tainted Strike 2/day

15th|Corrupt Avenger 7|
+12/+7/+2
|
+7
|
+6
|
+10
|Appraise 16, Bluff 11, Concentration 11, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 11, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 11, Survival 17, Spot 10, Use Magic Device 17|Obtain Familiar|Sworn Foe +6

16th|Corrupt Avenger 8|
+13/+8/+3
|
+7
|
+6
|
+10
|Appraise 16, Bluff 12, Concentration 11, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 11, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 12, Survival 19, Spot 10, Use Magic Device 19|Astral Tracking|Moderate Depravity Bonus Feat

17th|Corrupt Avenger 9|
+14/+9/+4
|
+8
|
+6
|
+10
|Appraise 16, Bluff 14, Concentration 11, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 11, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 14, Survival 20, Spot 10, Use Magic Device 20||Unnerving Fury

18th|Corrupt Avenger 10|
+15/+10/+5
|
+8
|
+7
|
+11
|Appraise 16, Bluff 14, Concentration 15, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 11, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 14, Survival 21, Spot 10, Use Magic Device 21|Planar Familiar|Sworn Foe +8, Tainted Strike 3/day

19th|Swordsage 1|
+16/+11/+6/+1
|
+9
|
+7
|
+11
|Appraise 16, Bluff 19, Concentration 15, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 11, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 19, Survival 22, Spot 10, Use Magic Device 22||Quick to Act +1, Discipline Focus (Diamond Mind)

20th|Maho-Tsukai 1|
+16/+11/+6/+1
|
+11
|
+7
|
+11
|Appraise 16, Bluff 20, Concentration 15, Disable Device 11, K. Shadowlands 4 (cc), K. Planes 11, K. Arcana 11, Listen 11, Spellcraft 11, Sense Motive 20, Survival 23, Spot 10, Use Magic Device 23, Collector of Stories Skill Trick||Blood Component, Spell Conversion, Maho Metamagic[/table]
NB; any additional bonus feats from high corruption/depravity should take additional usages of Animal Devotion for additional uses per day.

Ability Scores
Str; 10
Dex; 10
Con; 14
Int; 18
Wis; 8
Cha; 14 (+5)

Spellcasting
NB - due to having 3 different spellcasting progressions, but only 1 at the end of the build, I have only included the 20th level spellcasting table. However, for the sake of completion, I also have;
8th Level Spellthief Casting (until ECL20), traded into Maho-Tsukai
10th Level Corrupt Avenger Casting (until ECL20), traded into Maho-Tsukai
Maho-Tsukai has bonus Spells/day based on its corruption score. As an Akutsukai, it has a fixed Corruption equal to 1/2 Charisma Score (not bonus) +1; at ECL20, before items, this is 10. It has no additional spells/day, until it gains additional Charisma.
Spells per day
{table=head]Level|0lvl|1st|2nd|3rd|4th|5th|6th|7th|8th|9th
20th|6|6|6|6|6|6|6|6|6|4[/table]

Spells Known
{table=head]Level|0lvl|1st|2nd|3rd|4th|5th|6th|7th|8th|9th
20th|5|5|4|4|4|4|4|4|3|2[/table]

Notable Spells
1st; Cobra's Breath, Golem Strike, Grave Strike
2nd; Cloud of Knives, Ray of Stupidity
3rd; Kiss of the Toad
4th; Cloud of Taint, Evard's Black Tentacles
5th; Draconic Polymorph
6th;
7th; Withering Palm
8th; Greater Planar Binding
9th; Timestop, Mindrape, Tainted Aura

The spell-list for spell selection is MASSIVE. I can choose any from; I did not choose them all due to time constraints, but also due to the various degrees of which a campaign can take.
Sorcerer/Wizard spell list (Abj/Div/Ench/Ill/Trans only)
Corrupt Avenger spell list
Maho-Tsukai spell list


Build Write Up
Level 1-5
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Start off as a standard Human Spellthief; with Godsblood theft, I can use my decent Charisma score to turn a number of stolen spells into those from the Luck Domain a few times a day; 2nd level spells means I can get myself an Entropic Shield to keep me alive, or Aid for help with the odd jobs. Able Learner and Knowledge Devotion just gets me out and about the heavily taxed skill requirements. With Skills in several useful utility skills, I am an asset to any party, and can function as a reasonable trapfinder, even if my low Wis and unoptimized Dex make scouting in general a less attractive option.


Level 6-10
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Here is where it begins to get a bit more exciting; Master Spellthief is the staple by which Spellthieves are considered useable. With Arcane Advancement at all levels, the SI is getting more powerful than what its meagre spell-list and casting capabilities suggest. WIth Cloud of Knives being my go-to option for Sneak Attacking, or Ray of Stupidity for Anti-Caster capabilities (Int Damage+Steal Spell), I can be fairly confident of getting Protection from Energy or Freedom of Movement against inevitable grapple tactics, while Break Enchantment is a fantastic spell to have for "just when". My lowish Wisdom is offset against my chosen foes (eligible to choose for the campaign, but with Knowledge Arcane and Planes, Constructs, Dragons, Outsiders or Elementals make the most sense), while Detect Taint/Sworn Foe is available for me to locate what is a permissable target for my Tainted Strike; the extra damage may come in handy in certain situations.

Taint Suppression is just fine and dandy; I have no ability scores keyed off Con, with the exception of my Corruption limits and HP.

Animal Devotion gets me a natural attack with which I can cause poison. Touch of Taint allows me to taint said foes.


Level 11-15
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Grim Resolve+Spellgrace stacking together is a nice little conjunction, while Frightful Fury gives me a lovely, lovely little boost in combat, offsetting the Hidden Corruption Penalty and scaring the enemy with a semi-respectable DC (around 18), while continued Sworn Foe advancement, in conjunction with Track and rapid Survival skill progression allows me to follow my target through all sorts of terrain. Obtain Familiar gets me a little ally; it's only of minor use at the moment, but my good BAB and HP go together to make it a reasonabe combat buddy, especially when its buffed by Stolen Spells etc.


Level 16-20
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This part is the sweet spot. While it's performed adequately, the builds power massively increases at this stage; with Astral Tracking, I can now with a DC30 check (ECL20, I have 23 ranks, -1 from Wis, and +8 from Sworn Foe) learn where the foe has teleported to. With Greater Planar Binding, I can call something capable of letting me either Plane Shift, or Teleport to whereever they be. The Maho-Tsukai has the wonderful ability to convert existing spellcasting levels into its own spellcasting; this gets me 18 levels worth of casting, using the above spell lists. Fantastic. I also have an Initiator level of 10 for Swordsage, getting me some nice little abilities. Assassins Stance can help my melee abilities, for example.

With Planar Familiar, I can get all-sorts; my favourite is the Mirror Mephit (Expedition to the Demonweb pits) for its At Will Mirror Image. Combined with Draconic Polymorph, I have a lovely powerful creature capable of fighting alongside me.

The final bit of the build is the application of the Akutsukai template; this grants me (among other things) the ability to command tainted opponents (the updated rules for its Command ability are in Heroes of Horror, pg66; as is the rest of the OA updated ruleset for taint); this is gained after becoming a Maho-Tsukai; gaining me the Crimson Road ability; this used the old Monk Progression of attacks; if that holds true, then it makes my +16BAB even more powerful (16/13/10/7), but also that of my Familiar. On the other hand, I think it should grant me an equivalent flurry of blows, in which case, Meh. As an Undead, I also am immune to Taint, and gain an effective Taint Score of 1/2Cha+1. Noice.

You can go further and apply the Akutensi template; but that grants At Will Shapechange for no LA; a little bit broken and clearly NPC flavoured.


Sources
Spellthief; Complete Adventurer
Corrupt Avenger, Touch of Taint; Heroes of Horror
Maho-Tsukai, Akutsukai; Oriental Adventures
Master Spellthief, Collector of Stories; Complete Scoundrel