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 fellow Freeglade Lancer Tam Whytewinter, who had earned his boards in the Skirmish at Wooded Crag fighting against skulltrogs.