Okay, Mage Knight used a lot of Ral Partha sculpts for one set. You can see some of them under Ral Partha's Ogres but I can't find the one I'm thinking of. This is the Mage Knight (prepainted) version, which was called a "Krugg Seer":
But I'm sure there's a proper metal one available from Ral Partha.... just don't know what it's CALLED. Anyone?
EDIT: It's with the trolls:
Ral Partha's Troll Shaman.