Adversary

The Adversary is a fictional character, a demonic supervillain in the Marvel Comics universe. He first appeared in Uncanny X-Men #188, by Chris Claremont and John Romita, Jr. The Adversary is a demon who was initially summoned by the X-Men member Forge several decades ago and has since come back to antagonize the X-Men and threaten the entire world. During the Vietnam War, the Native American mutant known as Forge saw his company slain by the North Vietnam. Forge tapped into his long-suppressed shamanic heritage to summon the Adversary to destroy the attackers, but then regained his senses and banished the demon. Nevertheless, the Adversary had a foothold on the Earth thanks to Forge's actions. Years later, Forge's mentor Nazé was killed and his form and memories stolen by a Dire Wraith, an alien parasite. The Nazé impostor summoned the Adversary, only to be destroyed by the demon. The Adversary was then able to escape the dimension to which he was bound, capturing Forge and his... full article at wikipedia