Metal Men #22

The cover of Metal Men #22 promises one of the team's most unsettling threats yet — a blazing, energy-crackling villain called the Sizzler, whose power apparently transforms the robot heroes into human forms. Andru and Esposito's cover art vividly captures the chaos, with several Metal Men rendered in human-like bodies reacting in shock and pain while the glowing, blue-skinned Sizzler radiates intense energy at the center of the scene. It's a genuinely inventive 1966 DC cover that sells the strangeness of the premise with real visual flair.