Magneto

Magneto is a Mutant villain who appears in Marvel Disk Wars: The Avengers.

Marvel Disk Wars: The Avengers
Charles Xavier convinces Magneto to help the Avengers and X-Men against Loki as there's a young Mutant whose life is in dager too. Magneto arrives and defeats the Loki-controlled Sentinels while Captain America and the X-Men go to rescue the other Avengers.