Gruul the Dragonkiller is, as his name implies, a renowned dragon-slaying Gronn as well as the final boss of the raid dungeon Gruul's Lair in Blade's Edge Mountains. He is the father of the seven Gronn: Goc, Gorgrom the Dragon-Eater, Grulloc, Maggoc, Skulloc Soulgrinder, Slaag, and Durn the Hungerer.Gruul's Earthen Signet is required for the quest The Cudgel of Kar'desh.