Action Comics #903

The mastermind behind "Reign of Doomsday" begins the final phase of his plan to destroy Superman and all mankind! Steel, Supergirl, Superboy and the heroes of Earth unite to try to stop the devastation, while Superman undertakes a dangerous journey in a desperate attempt to save the day!

Characters: Batman, Blue Beetle (Reyes), Captain Atom, Congorilla, Dick Grayson, Doctor Fate (Kent V. Nelson), Doctor Light (Hoshi), Doomsday, Dove (Granger), Green Lantern (Scott), Hawk (Hall), Jesse Chambers, John Stewart, Lois Lane, Miss Martian, Raven, Rocket Red (Pushkin), Rose Wilson, Steel (John Henry Irons), Superboy (Kon-El), Supergirl (Kara Zor-El), Superman, Tim Drake, Wonder Girl, Zatanna