[2] He, Diablo, and Baal were the three Prime Evils, and from the outset, warred amongst each other to maintain dominion and rule over the legions of the Burning Hells.[3] He acted as the mentor of Belial.[4] As with all of demonkind, Mephisto warred against the High Heavens in...
He summoned Mephisto (or a demon claiming to be Mephisto), who sated his hunger for the fruits of arcane lore. A covenant was struck at the cost of Diablo's soul. Diablo sought to extend his lifespan ad infinitum, thus denying the devil his due, but found that Mephisto had limited ...