Simple Reanimation

Feats

At 5th level, a reanimator adds lesser animate dead to his formula book as a 2nd-level extract. In addition, each undead creature raised by the reanimator gains a +4 alchemical bonus to its Strength and Charisma ability scores for the duration of the spell that raised it.

Simple Reanimation — Feats | Pathfinder: WotR Database