Resplendid Man lost his powers when Gretchen Kelly kidnapped his sister Wanda Mae and threatened to kill her. She planned to give herself and Lex Superman powers from him. In the end he punched Gretchen on the chin when Superman couldn't hit her because she was a woman. He willingly gave up his powers. He held Gretchen up on the machine and all the powers were transferred back to Superman. That is except for the SuperRat that got away. (Gretchen tested it on a rat first).
