Tentaghoul

This ghoul rises in places pleasing to Orcus, where many were slain at once, their bodies becoming entangled and enmeshed with one another, incorporating tumor and excrement alike into a bloated, reeking abomination that moves much faster than it has any right to. The hulking creature has long, tooth-studded tentacles that protrude from all over a hulking form with many layers of wrapping flesh that look stitched together by a distracted and psychopathic tailor.

Just being near the creature is an experience so overwhelming that it can result in poisoning, and contact with the many teeth and claws that line its grasping tentacles causes the trademark paralytic state that all ghouls are capable of inducing upon non-Elves.

Tentaghouls are so distressing that a natural reaction is to flee until a cleric can be brought to bear, but even this may not be enough. A tentaghoul, incorporating many dead into itself, possesses their combined will, and is capable of defying a command intended to Turn Undead, no matter which deity might be sponsoring it.