The Defenders #52

Two of Marvel's most powerful bruisers — the Hulk and the Sub-Mariner — clash head-on across a debris-strewn battlefield in this October 1977 issue, their teammates Hellcat, Valkyrie, and Moondragon caught squarely in the chaos around them. The cover tagline says it all: "The Prince and the Power," with the rest of the Defenders forced to navigate a confrontation between two allies who are anything but friendly at the moment. Gil Kane and Frank Giacoia deliver a kinetic, hard-hitting image that makes it easy to see why this non-team's internal tensions were one of the series' great ongoing pleasures.