I Hunt Monsters Vol. 1 #2

William, last of the Warlocks, is gifted with the power to summon his ancestors' magic. But that ageless power can't help him choose between Delilah (a vampire) and Aarna (a sorceress), who both love him. William must also somehow defeat the corrupt and terrifying demon Azmodeus, before the fiend's diabolical plans for Earth succeed!