Ghasts

Ghasts are known as being superior ghouls for although they look almost identical, ghasts are much stronger and have retained a great deal of the intelligence that they had in life. Cunning and evil creatures, these monstrous beings are a match for most adventurers and it is rumoured that the very touch of one of these undead horrors can cause the very marrow of someone's bones to freeze which paralyses their unfortunate victim in place to be fed upon at the ghast's leisure.