A skulltrog.

Skulltrogs were enormous, hairy, savage trogs who hunted in packs and devoured anyone or anything that crossed their path.

Role in the Edge a Chronicles

Rook was attacked by a band of Skulltrogs in The Last of the Sky Pirates. In The Blooding of Rufus Filatine, Rufus envied Tam Whytewinter who had earned his caros in the Skirmish at Wooded Crag fighting against skulltrogs.