Superman: The Kryptonite Spectrum #4

Superman finds himself somewhere over the rainbow in this landmark issue — featuring the debut of a brand-new, canon-changing, sure-to-be-essential-for-all-time character! (At the very least, he's awfully cute!) What never happened to the Man of Tomorrow? The answer awaits in a form-bending, head-spinning, myxed-up melee of mites, men, and multicolored meteoroids. It's a major milestone for our magnificent medium — with two added dimensions for extra support!

Characters: Bat-Mite, Batman, Doctor Fate (Nassour), Emil Hamilton, Jimmy Olsen, Kal-Elf, Lex Luthor, Lois Lane, Mister Mxyzptlk, Perry White, Superman