Call him a saint, leader, terrorist or madman, there’s something just magnetic about this character. He’s been a member of the X-Men and the world’s greatest villain. He’s a pivotal part of the House of M, Apocalypse’s 13, Onslaught Saga and the Secret Wars events. He has very strong ties with Professor X, Mystique, Quicksilver, Scarlet Witch and Polaris, to name just a few. Read his full history on the Marvel Universe wiki.
This particular version was written to represent him shortly before the House of M event. He’s quite powerful, but like most villains, benefits from having a few lackeys around. If you’re running the House of M storyline, it begins with the heroes assaulting Genosha, but they don’t get anywhere before Scarlet Witch changes the world. I wanted something a tad more dynamic, so I had Magneto assault the SHIELD Hellicarrier outside New York City in retaliation for SHIELD’s actions in part 2 of Break Out. I recommend choosing mainly minor villains to fight with him, so there isn’t an excess of d12s being rolled. I paired him with Diamond Lil, Mystique, an escaped Mandrill, and a mentally controlled Spider-Woman (who was on the SHIELD Hellicarrier).