Magneto constructs a machine to amplify his powers and blackmail the world into creating a mutant nation. The X-Men and Joseph, who has fallen under Astra's control again, oppose him. The X-Men defeat Magneto, leaving his powers severely depleted from over-strain, while Joseph sacrifices his life to restore the Earth to normal. The United Nations, manipulated by its mutant affairs officer Alda Huxley, cedes to Magneto the island nation of Genosha, which has no recognized government. Magneto rules that nation for some time with the aid of many who had previously opposed him, including Quicksilver, Polaris, and the founder of the Acolytes, Fabian Cortez. Despite the UN's hopes that Genosha's civil war between humans and mutants would destroy or at least occupy him, Magneto crushes all opposition to his rule and rebuilds the nation by forming an army of mutants dedicated to his cause, including mutants coming from all over the world seeking sanctuary. Eventually, Magneto is able to use the Genegineer's equipment to fully restore his power. Intending to declare war on humanity, he captures Professor X to use as a symbol with which to rally his troops. In the Eve of Destruction storyline, Jean Grey recruits a new lineup of X-Men to help Cyclops and Wolverine rescue Xavier and defeat Magneto. Taking the opportunity for revenge, Wolverine attacks the defeated Magneto, leaving him with serious injuries and crippling him for a time. Xorn Soon after this, Genosha is decimated by Sentinels under the orders of Cassandra Nova Xavier, Charles Xavier's previously unknown dead twin sister, whom Xavier had killed in the womb. Magneto and 16 million mutants who were gathered at Genosha are reported deceased. Months after the event, a team of X-Men searching in the debris find what was apparently a recording of Magneto's last words. Mutant-supremacist ideas, attributed to him, become wide-spread in the mutant community with some holding him as a martyr of the mutant cause. Magneto has become a Che Guevara-like revolutionary figure in the mutant community. T-shirts and posters with Magneto's face and the phrase "Magneto Was Right" become popular items, even amongst certain students in the Xavier Institute. Meanwhile, the mutant known as Xorn joins the X-Men after being rescued from captivity in China. Xorn is said to be a Chinese mutant with a "star for a brain" and wears a face-concealing metal helmet with a skull-like motif. He also possesses nebulous healing powers, although the only time he was shown to heal anyone is when he deactivates a number of microscopic Sentinels and simultaneously restores Professor Xavier's ability to walk. In the Planet X storyline, he eventually removes the helmet, revealing Magneto's face beneath. It is alleged that Xorn never existed and is simply an identity conceived wholly by Magneto. Having "exposed his deception", he then schemes to destroy the X-Men and reverse the polarity of the Earth's magnetic field, increasing his power with the use of a mutant drug called "Kick". He recruits the Special Class and Esme from the Xavier School to serve as his Brotherhood of Mutants, though most eventually turn against him. Before being decapitated by Wolverine, "Magneto" devastates much of New York City and kills Jean Grey using a lethal electromagnetic pulse that caused her to have a massive stroke. Some time later, the X-Men find another Xorn, who identifies himself as Shen Xorn and reveals that the "Magneto" who devastated New York was Kuan-Yin Xorn, his brother. Kuan-Yin Xorn had been possessed by Sublime, a sentient bacterium, through his frequent use of "Kick," which was Sublime in aerosol form. Marvel editor-in-chief Joe Quesada stated that "Kuan-Yin Xorn came under the influence of as-yet-to-be-revealed entity that forced him to assume the identity of Magneto." House of M With the launch of a new Excalibur series, Xavier meets up with the real Magneto who is still alive. Xavier brings with him the corpse of Kuan-Yin Xorn and explains how the impostor has killed over 5,000 people including Jean Grey. Magneto is shocked and angry that people think he is capable of committing such an act. Xavier and Magneto put aside their differences to rebuild the island nation, rekindling their friendship in the process. Magneto's daughter Wanda suffers a mental breakdown over the loss of her children and starts to warp reality in order to recreate them, inadvertently resulting in random attacks on the Avengers, until Doctor Strange puts her in a coma. In Genosha, Magneto hears Wanda's psychic cry for help and, using a wormhole, whisks her away before the Avengers can do anything. Back in Genosha, Magneto tends to Wanda, becoming more withdrawn and angry, allowing only Xavier to visit, in the belief that Xavier can help Wanda. Xavier is angry to learn that Magneto revealed he was alive, in rescuing Wanda, but agrees to try and help. Months pass with no avail, and not even Dr. Strange's magic helps. The X-Men and the Avengers meet to decide what should be done, and when some of the members suggest killing Wanda, Quicksilver rushes to Magneto to inform him of this development. Magneto admits that he doesn't know what to do anymore and that the groups may be right, but Quicksilver convinces Wanda that she can undo her wrongs, prompting her to warp reality into the House of M. In the new reality, Magneto is attacked by Sentinels over Manhattan in 1979, and reveals an alleged international anti-mutant conspiracy involving Richard Nixon. This results in Magneto being granted sovereignty over Genosha as leader of the world's mutants. A group of heroes have their memories of the "real world" restored by Layla Miller, and they band together and attack Magneto in Genosha, believing him to be the one responsible. During the battle Layla is able to restore Magneto's memories as well, and he confronts his son, enraged that Quicksilver had done all of this in his name. Quicksilver reveals that Magneto would have let Wanda die, but Magneto replies that Quicksilver was only using Wanda and himself. Furious, Magneto kills Quicksilver by pummeling him with large pieces of steel and then crushing him with a Sentinel. Sensing her brother's death, Wanda incapacitates Magneto and removes his mouth when he tries to talk to her. She revives Quicksilver, telling Magneto that Quicksilver had only wanted him to be happy, but even when she gave Magneto what he wanted he was still a horrible man, and mutants were freaks. With the phrase "Daddy - No more mutants," Wanda changes the world back to its original form and causes ninety-eight percent of the mutant population to lose their powers. Magneto is one of the many mutants to lose their powers, and is left a broken man. When Quicksilver comes to Genosha to restore the mutants' powers with the Inhumans' Terrigen Mists, Magneto condemns his actions, pointing out the disastrous effects the Mists have on non-Inhumans. An angry Quicksilver attacks Magneto with his new powers from the Mists, savagely beating him until his own daughter Luna begs him to stop. When the Inhumans come looking for their Mists, Magneto tells them what has happened. The Collective In New Avengers #20, the Collective, a being comprised of energy from all the former mutants' powers, merges with an energy absorbing mutant named Michael. The Collective seemingly kills the current incarnation of Alpha Flight, and battles the New Avengers before landing in Genosha. There it repowers Magneto and reveals itself as Xorn. Xorn explains that he took the image of Magneto because he knew mutants would follow him, and that they needed the real Magneto again. Magneto, not in control of himself, begins attacking the New Avengers and S.H.I.E.L.D. agents while he pleads for them to kill him. He is taken down with a direct brain attack from mutant S.H.I.E.L.D. agent Daisy Johnson. Iron Man, Ms. Marvel and the Sentry combine their powers and send the Collective/Xorn into the sun. Michael is separated from the Collective. Magneto, unconscious, is loaded into a S.H.I.E.L.D. helicopter, but it explodes upon take-off; his body is not found among the rubble. http://en.wikipedia.org/wiki/Magneto_(comics)#Avalon_and_Genosha