Mutant X #20

Two flame-haired women clash mid-air on Adam Pollina's dynamic cover for Mutant X #20 — Jean Grey in her blue costume taking a hit from Madelyne Pryor in sleek black, while a wide-eyed Havok watches helplessly from below. The cover copy asks "How can this be, you ask?" with genuine urgency, and the speech bubble — "Back off, witch, Havok's mine!" — makes clear that whatever is unfolding inside, the personal stakes are running high. This 2000 Marvel series continues to deliver the kind of alternate-reality drama that keeps readers turning pages.