K'Zigler, Demonic Messenger is a unique Primordial Scavenger found in the Realm of Fractured Fate: Battlefields of Eternity in Act IV of Diablo III.
In combat, he has the Molten, Jailer and Desecrator traits.
A bounty may be offered to kill K'Zigler, in which case the secondary objective is to kill 75 enemies.