Violate Spell-like Ability

Prerequisite(s): Any Evil Alignment
Benefit: You add the Evil descriptor to all of your spell-like abilities. For any ability that does damage, half of that damage is Vile and will bypass resistance. This feat can be used up to 2x/day, it does not increase the number of times oyu can use your spell-like ability. Tis feat can be taken multiple times but is applied to a different ability each time.
Source: Book of Vile Darkness