Wicked Defiance

Prerequisite: Wisdom 15 or Charisma 15
Benefit: You gain a +2 feat bonus to Will. This bonus increases to +3 at 11th level and +4 at 21st level.
    In addition, whenever an enemy targets you with an attack against Will, you can take 5 damage (10 damage at 11th level and 15 damage at 21st level) as an immediate interrupt to change the target to an ally adjacent to you. You cannot reduce this damage in any way.

Published in The Book of Vile Darkness, page(s) 1-32.