The Mutant Power Circuit is a device that amplifies a mutant's natural abilities. Professor X uses it as a key component of Cerebro. Magneto knew about the circuit and wanted to use his for a plan. Magneto set a plan into motion to steal the circuit. Magneto sent Blob and Pyro to the Deep Space Observatory to distract the X-Men while he and Juggernaut attack the Xavier Mansion to acquire the circuit. It worked and the X-Men departed leaving Xavier and Kitty Pryde behind. Inside Asteroid M Magneto told Toad to put the circuit into their computer.