Mephisto (Earth-7200)

Once one of the Celestials, Mephisto tried to take over all of the realms for power, but was subsequently banished to Musphelheim for his crimes and lost his title of Celestial forever, now called The Fallen Celestial. However, with the help of Desaad, he managed to come back from his prison and tired to enact his revenge on the Celestials, Doctor Strange and Doctor Fate.

He lost his chance on revenge as he lost to Iron Fist, Champion of Earth, and was once again banished to Musphelheim, whereupon he attempted to make new schemes. After the return of Darkseid, Mephisto would aid him to come back to battle, and joined the Doom League in the final battle of Ragnarok, where he died alongside most of the participants.