Justice League of America #198

What a wild mashup — this January 1982 cover by Ross Andru and Romeo Tanghal stages a genuine Old West showdown, with DC's frontier gunslingers Bat Lash, Cinnamon, Jonah Hex, and Scalphunter facing down a row of looming, silhouetted Justice League members right in the middle of a dusty frontier street, a saloon visible in the background. Hex coolly issues the challenge — "Whenever you hombres feel lucky… DRAW!" — making the tension practically crackle off the page. Gerry Conway's "Once upon a Time in the Wild Wild West…" promises exactly the kind of cross-era collision that makes team-up comics so much fun.