Arch-Enemy: Magneto views him as the biggest obstacle to his Well-Intentioned Extremist goals, even if the two have a Friendly Enemy perspective over their conflict.After losing the use of his legs, Charles founded the X-Men and converted the Xavier Mansion into a school and sanctuary for all mutants. At a young age, he was friends with Magneto, only for their ideologies to clash and them to become enemies. Charles Xavier is a professor of genetics and also one of the most prominent mutants in the world.