Superman #316

Superman is brought to his knees on this October 1977 cover as Metallo looms behind him, his chest cavity glowing with deadly Kryptonite where a heart should be — a chilling visual that makes the cover's tagline, "Will This Be the Heart Attack That Crippled Superman?", feel all too plausible. José Luis García-López's pencils and inks deliver a striking composition, with the Man of Steel visibly weakened while two versions of the metallic villain frame the scene in threatening poses. With a story by Martin Pasko and interior art by Curt Swan, this is a sharp, suspenseful package from DC's late Bronze Age that earns its dramatic cover promise.