Mutant X #21

Three prominent figures dominate this Randy Green and Andrew Pepoy cover: a blue-suited, blond hero with retractable claws, a gold-armored redheaded woman in a battle-ready stance, and a caped Magneto looming imposingly in the background. Massive mechanical tentacles frame the scene, and a bold speech bubble — "Oh, no! He's killed Apocalypse!" — sets a charged, dramatic tone for issue #21. It's a striking snapshot of the alternate-universe tension that made Mutant X such a compelling corner of Marvel's 2000 lineup.