Pazak
From Age of Sigmar - Lexicanum
Pazak of the Faceted Eye is a Rotbringers sorcerer working for Anhur. He can control the plague-winds, giving him the ability to: summon Blight-flies and daemons, poison the air and rot a man's flesh with a look. He has a friend called Bulbus.[1]
He was once a shaman, but when a plague tormented his tribe he willingly embraced it and Nurgle blessed him. He almost died in the Alkali Basin, if not for Anhur sparing his live in exchange for a oath of service. Anhur needed him to use the Black Rift to open the gate to Khorne's Domain in Klaxus.[1]