Iron Man & Sub-Mariner

Marvel paired two of its most volatile heroes—the armor-clad Iron Man and the Atlantean monarch Sub-Mariner—in a single 1968 issue that pitted them against each other in a classic clash of temperaments and ideologies. Written by Archie Goodwin with art by Gene Colan, this one-shot from the late Silver Age captures the tension between technology and mysticism, land and sea. Though brief, it stands as a notable showcase of two iconic characters meeting in a standalone confrontation that remains a touchstone for fans of either hero.