Ekzarrath

Apocalypse made flesh, Ekzarrath works in union with the slumbering evils of Abaddon. His goal is destruction, and his thirst for death is never quenched.

He often goes to work on the material plane using the Tarrasque, a beast modeled similarly to him but ultimately not his own to command; the Tarrasque belongs to Kael'Karum, but their goals are aligned.