Embrace the Dark Chaos

(Fiendish Codex I: Hordes of the Abyss)

Transmutation [Chaotic]
Level: Cleric 8, Sorcerer 8, Wizard 8,
Components: V, S, XP,
Casting Time: 1 standard action
Range: Touch
Target: Willing living creature touched
Duration: Instantaneous
Saving Throw: None
Spell Resistance: No

You infuse the creature touched with raw chaos channeled from the Abyss.
Somehow it looks more fiendish than before.
The subject immediately gains one Abyssal heritor feat for which it qualifies, chosen by you at the time of casting.
If the subject does not qualify for the designated feat, the spell fails.
This Abyssal heritor feat replaces one feat of the subject's choice that it already possesses.
The replaced feat need not have been an Abyssal heritor feat.
If the lost feat was a prerequisite for other feats or prestige classes, the subject loses access to those feats or prestige class abilities until it once again meets all the prerequisites.
Once the subject has the Abyssal heritor feat, only a miracle,
shun the dark chaos, or wish spell can reverse the change.
XP Cost: 250 XP.