Guruk Monstrosity Kill Task
From Drunkapedia
Speak to Borsh in Kor-Gursha.
Borsh tells you, "There are monsters lurking in the fetid recesses of the Southern Catacombs, huge and bloated with dark purpose. Take your weapon and hunt down 10 of the Guruk Monstrosities and I will reward you. Be careful human, those are dangerous caverns."