UNCANNY X-MEN (1963) #437

Juggernaut and She-Hulk are interrupted by someone wearing Juggernaut armor, who engages Cain in battle. Cain and She-Hulk both realize they are no match for the new Juggernaut, as Cain’s powers have gone, but Cain does not walk away from a fight, so continues to fight the new Juggernaut, which takes the battle to a residential area, and the two men injure and destroy much of the area. She-Hulk tries to reason with Cain, she now believes he can not change that he will always be a violent man. Cain and Jennifer come up with a plan, and the new Juggernaut’s helmet is removed, and his powers seem to leave him, for he returns to the size of his real body – a boy.…