30 Days of D&D Day 15: Favorite Monster (Undead)

What is my favorite Undead Monster? Well, I do warn you, as a player and not a DM I'm going to perhaps have different insight on the monstery end of things.

Well. I was actually a little surprised to find I had one which came immediately to mind: the ghoul. They're humanoid undead which has a paralytic touch, a pretty bad stench, and a long terrifying tongue with which to lick the marrow from bones.