The Brave and the Bold #69

From 1966 comes this team-up pairing Batman and Green Lantern in The Brave and the Bold #69, with a cover by Carmine Infantino and Joe Giella that throws you right into the tension: Green Lantern squares off against a towering, yellow-skinned alien figure whose energy blasts crackle between them, while below, Batman lies helpless, pinned beneath a massive robotic contraption — the cover copy warning, "Batman's Trapped in an Iron Bat! You're on Your Own, G.L.!" Inside, Bob Haney scripts "War of the Cosmic Avenger," with interior art by Win Mortimer. A genuinely gripping visual setup that captures the stakes of a hero fighting alone while his partner is out of commission.