X-men: AOA - Magneto

In the reality of the Age of Apocalypse (Earth-295), Magneto founds this world's X-Men after the death of his friend Charles Xavier, at the hands of Xavier's own son David who traveled back in time to kill Magneto hoping to fulfill his "father's greatest wish".

He and the X-Men fight against the forces of this world's Apocalypse who, without the interference of Xavier, was able to take over North America. Holocaust, Sinister, Mikhail Rasputin and Abyss are Apocalypse's horsemen, and while Magneto's team is composed not only of X-Men, but also of standard "evil" mutants from traditional timelines, including mutants such as Sabretooth, other individuals who are "heroes" in Earth 616 serve Apocalypse in this timeline.

In this timeline, Magneto is married to his former protégé Rogue, and being able to touch due to his magnetic mastery over his own bio-aura, are able to have a son together who they name Charles, in honor of Xavier. Magneto and Charles are later personally captured by Apocalypse himself, though they are rescued by Rogue and the other X-Men, including Nate Grey, who raid Apocalypse's citadel in a desperate final attempt to save all of reality from M'Kraan crystallization.

As the X-Men use the M'Kraan Crystal to send Bishop back in time to return the timeline to its proper course, Magneto and Nate Grey square off in one last fight against Apocalypse and Holocaust. Nate Grey jams the original fragment of the M'Kraan Crystal into Holocaust, crystallizing them both, while the battle between Magneto and Apocalypse ends with Magneto using his control of magnetism to rip the techno-organic Apocalypse in half. Following this, Manhattan Island and most of North America are enveloped in nuclear bombs.

It is later revealed that the day was saved by Jean Grey, who manifested the Phoenix Force at the point of near-death.

However, nobody realizes this, and everyone assumes it is Magneto, who immediately becomes a reluctant hero to a grateful humanity. The X-Men then help rebuild America in record time, and Magneto is made Federal Director of Mutant Affairs of the government of the newly-restored United States of America, with the X-Men deputized as a mutant police force sanctioned to bring to justice the remaining survivors of Apocalypse's regime. Just as the burden of maintaining the deception eventually begins to take its toll on an extremely-stressed Magneto, he is secretly visited by Mister Sinister (who everyone has assumed to have been killed by X-Man), who reveals to him just what really happened when the bombs fell. Sinister offers his silence in exchange for Magneto's promises not to go looking for him and to let him have the body of Jean Grey, who is actually still alive. Magneto is forced to accept for the sake of preserving the current fragile peace of global mutant-human relations, which had improved primarily due to the general public's mistaken assumption that he had personally saved the world by single-handedly stopping nuclear armageddon. A subsequent scheme of revenge orchestrated by an embittered former X-Man later forces Magneto to confess the truth to the rest of the shocked team of X-Men. He is nearly killed by an enraged Weapon X, but is saved by the intervention of his wife. The X-Men then proceed to stop Sinister from conquering the world using his own version of the Sinister Six (which consisted of brainwashed mutants including this world's version of Dark Phoenix) in a violent confrontation filled with many deaths, including those of both Gambit and Quicksilver. Grief-stricken and guilt-ridden, Magneto then voluntarily goes into U.S. government custody as penance for his deception. While in jail awaiting trial, Magneto appoints a restored Jean Grey as the new leader of the X-Men in his absence.

thank you wikipedia!