Devil of Undeath
Davurn was once a powerful wizard that became a potent and evil lich, feeding countless souls into his phylactery. But soon enough he became hunted, seeking out sanctuary, he fled into the pit for safety. Soon enough he began incorporating magics of the pit into his phylactery. With this infusion of infernal energy, he began to rise up as a devil, eventually rising up all the way to a position beneath Incancatus.
Davurn augments the devils under his command with legions of the undead and exploits his position as a devil lord for a supply of bodies as much as it is a supply of souls. He uses his skills and mastery of magics of undeath to execute fine control over the souls that he seizes.
Davurn seeks out mortal mages and offers them secrets of forbidden magics in exchange for their souls. He is the most reliable source of information for mages seeking to become a Lich themselves.