This is a Cyclopedia Bestiary Entry from Pillars of Eternity

Monster Name: Revenant

PillarsofEternityBestiaryRevenant.jpg

Revenants are undead that have devolved beyond even the relative intelligence of a gul.

Revenants retain their instinctive hunger, but they don't have the will or intelligence to reliably satisfy it. They are drawn to any environment where dead or dying bodies can be found.