Superman / Batman #21

Superman and Batman surge toward the viewer in this striking 2005 cover from the "With a Vengeance!" arc, their determined expressions flanking a mysterious central figure — a armored, visored character seated before what appears to be a massive, fanged beast looming in the background. Ed McGuinness and Dexter Vines bring their bold, dynamic style to the World's Finest duo, making even a static composition feel charged with tension. If "Mistaken Identity Crisis" sounds like trouble for the heroes, the cover's brooding atmosphere suggests they're already on a collision course with whoever — or whatever — waits in the middle.