Durross Malfactin

When Durros Malfictin, a human knight, died, his corpse was experimented on by a necromancer. The necromancer tried to instill a small amount of sentience in the corpse so that it could lead larger groups of mutated corpses. A hideous abomination called the Carcass of Durross Malfactin was the result of the necromancer's experiment gone horribly wrong. Tiny as it was, the abomination's intelligence proved enough to surprise the necromancer: The Carcass killed the old mage as he slept. It is said to roam the Barrens in search of bodies to sew onto its already gargantuan corpse.