Corpse

The walking dead are not, as the superstitious are wont to believe, the living come back for revenge. They are, rather, corpses possessed by demons.

The shambling corpse, controlled by a demon of sloth, causes its enemies to become weak and fatigued. Corpses possessed by rage demons go berserk and simply wade into their oppoinents mindlessly. Devouring corpses are held by hunger demons and feed upon the living. The more powerful demons rarely deign to possess a dead host.