Demon Prince: Eternal Sovereign Of The Multiverse

Born of the bottomless abyss, I forsook all that once defined me. Through endless slaughter and boundless ruin, wreathed in blood and flame, I rose— To seize the supreme throne! I am the Plague King, corruption incarnate, rotting worlds with my breath. I am the Doomsday Demon God, igniting all creation, ushering the end of days. I am the primeval blight, defiler of laws, corrupter of souls, the abyssal source of all evil. I am the Supreme Overfiend, slayer of gods, defiler of heavens, the usurper of fate itself. I am the undoing of all order— The Eternal Sovereign of the Bottomless Abyss! — Description from novelcodex.org