Barghest Feast

Transmutation [evil]
Level: Alchemist* 3
Components: S
Casting Time: 1 Standard Action
Range: touch
Target: creature touched
Duration: 10 minutes/level; see text
Saving Throw: Will negates (harmless)
Spell Resistance: yes (harmless)
  The target gains the ability to absorb power from devouring a humanoid corpse. To use this ability, the target must feed on the corpse of one nonevil humanoid creature, a process that takes 1 full round per Hit Die the creature had and provokes Attacks of Opportunity. For every 2 rounds it feeds on the corpse in this way, the target gains a +1 Profane Bonus on attack rolls, saving throws, and skill checks (to a maximum of +5).