Machine Man #13

Machine Man finds himself squarely in the crosshairs on this 1980 Marvel cover, where Aaron Stack — glowing with energy discharge — battles a mechanical robot adversary amid the steel girders of a construction site, while a massive wrecking ball swings toward him and a crew of uniformed soldiers scrambles below. The cover copy makes the stakes bracingly clear: the villain Kublai Khan has issued a chilling command to "Bring me the body of Aaron Stack!" Steve Ditko's dynamic linework gives the whole scene a kinetic, almost disorienting energy that suits a hero literally built to push human limits.