You could get the flavor of Magneto's powers by being a mage with combat spells, telekinetic spells, and some armor/barrier spells. You can emulate his personality by making him have a decent Charisma, the leadership skill, and a prejudice against those inferior non-awakened shlubs.
But a direct translation of the character? No. It's better to think about what aspects of the character you like, and transport that into the game, than try to port the entire character into the game. Doesn't work, especially for Magneto. He is a powerful character, in a universe where even the normal, mundane characters (Daredevil, Bullseye, Iron Fist, etc.) can do things that you would need a street samurai with deltaware or a multi-initiate adept to do.