Magister Dominar was one of the three undead Tsol'dasi that composed the Magisterion. He resided in the Tower Elniftor in the Underworld. Unlike Pryla'ket, who attempted to build an army by swaying the present undead to her cause, Dominar sought to build an army for the Magisterion by hand by uncovering Ugrach's method of forcing soulbleed to coalesce into undead beings. His combative magic focused mainly on the summoning of various weapons and blades - warhammers, serrated spears, and the like.
Dominar, along with the other two Magisters, Jor'keth and Pryla'ket, vanished without a trace after a failed attempt to overthrow King Ugrach. Failing to wrestle control of the Soulbleed Nexus from the Lord of the Undead, the Magisterion were weakened considerably and disintegrated into dust, their citadels abandoned.