Power-Boy
From superman.nu: Supermanica
Superboy meets Power-Boy
Power-Boy
Zarl Vorne, a superhero originally from Earth, was rocketed to the asteroid world of Juno, where the lower gravity gave him super powers. He met and befriended Superboy during one of the Boy of Steel's many journeys off Earth into outer space. Unfortunately, soon after his arrival on Juno, Superboy discovered that his presence was deadly to Power-Boy and he had to leave his new friend (SB No. 52/2, Oct 1956: "The Power-Boy from Earth!").
