Kingslayer

The Kingslayer is a balor who was once a general of Graz'zt but has since been enslaved by Casir and put under the authority of his prophet Sorhan.

The Kingslayer is many thousands of years old. He boasts of having killed many kings from many different worlds, whose skulls (with their crowns nailed to them) he wears on a chain hanging around his torso.

Nico made a pact with the Kingslayer to return from death back to Marillia to kill his father.