4. Magneto and Professor X in X-Men Comics

Best known as ideological opposites in Marvel lore, Magneto and Professor X have occasionally set aside their hostile visions to counter existential threats like Sentinels or the Phoenix Force. Their collaborations reveal profound personal history and mutual respect, shining a light on the strengths—and limitations—of rivalry-turned-alliance. These moments test both men’s convictions and the boundaries of trust. (marvel.com)