Quote Originally Posted by Nimrod's Son View Post
There's nothing about its appearance that suggests that, and we haven't seen any other undead in Tarquin's employ so far, so I'd be inclined to say it's a living creature unless we're given a very good reason to think otherwise.
It looks like you can see its skull through its skin, and the appearance reminds me a lot of Xykon's dragon.

That said, I've since been convinced otherwise.