Synopsis:
Karb-Brak makes everyone think Clark Kent is awesome so that they will surround him. This gives Karb-Brak an advantage in his battle with Superman (who he knows is Clark) as there will be innocent bystanders around during their fight. Superman beats Karb-Brak, but Karb-Brak reveals his secret - that he is dying from exposure to Superman!
Notes:
Elliot S! Maggin was not listed in the credits of the story since he had his name removed after a disagreement with the editor Julius Schwartz as documented in "Comic Book Legends Revealed #262" here: https://www.cbr.com/comic-book-legends-revealed-262/.
Wiacek and Austin inked backgrounds for Blaisdell as revealed in the letters page of Action Comics # 465.