Erik and Charles were never adversaries. They addressed one other as "old pals." They never harmed or sought to kill each other, even when one was in the way of the other. Their conflict was more intellectual than physical. When Erik was using his powers on a large scale, Charles wanted him removed from the planet because he was afraid that someone like Erik would tear down what Charles had worked so hard to create. But when the time came for Erik's departure, Charles helped him escape because he knew that he could be useful to him in another life. When Erik later returned to attack Genosha, it was with the intention of finding a cure for his mutant powers but not killing anyone else. Even after being severely wounded, he still tried to protect the people on Genosha from certain death. Magneto hated humans for their prejudice and violence, but he also loved his brother so much that he would never harm him. When Erik left Earth, Magneto hoped that he would come across a peaceful planet where mutants could live in peace too. But once again, fate had different plans for Magneto. After being poisoned by Arnim Zola, who was working for Hitler, Magneto lost the will to live and decided to do something about it.