Magneto- Uncanny X-Men Vol. 1 #112

 In Uncanny X-Men Vol. 1 #112 Magneto is attacked by all of the X-Men, at one time, and beats them with ease. He adds insult to injury by strapping the X-Men to a machine that inhibits their mutant power and their basic motor function- reducing them to a childlike status. Magneto has a robot nanny take care of the X-Men to serve them humiliating indignity along with defeat in battle.