Tymaret the Murderer King

When Phenax made his escape from the Underworld, there was one witness to his escape, an unremarkable soul called Tymaret. Sharing what he'd seen with the god of the dead, Tymaret received a cursed blessing from Erebos: he would be restored to the mortal world, but as a Returned, and with the task of slaying Phenax. Tymaret took up the quest, but as Phenax was masked, he proved difficult to locate. So Tymaret began slaughtering every mortal he encountered, confident that one of these victims would be Phenax. Yet, when Phenax became a god, he evaded his pursuer, leaving Tymaret and his legions of Returned to eternally, fruitlessly kill in Erebos's name.