"For the Man Who Has Everything" is a comic book story by writer Alan Moore and artist Dave Gibbons, first published in Superman Annual #11 (1985). It contains the first appearance of the Black Mercy, a magical, extraterrestrial, plant-like organism which, upon symbiotically attaching itself to its victims, incapacitates them while causing them to hallucinate living out their greatest fantasy. The story has been adapted for television: for the episode of the same name of the animated TV series Justice League Unlimited, loosely into an episode of The CW's live-action Supergirl TV series titled "For the Girl Who Has Everything" and as an inspiration for the episode of Syfy live-action Krypton TV series titled "Mercy". The story was nominated for the 1986 Kirby Award for Best Single Issue. Source: Wikipedia (en)