Avengers #317 1990

Avengers #317 features Earth's Mightiest Heroes confronting Nebula and the cosmic entity the Stranger, both seeking the powerful Infinity Union device. The Avengers strive to prevent either from possessing the dangerous artifact. However, a crucial misstep by new Avenger Spider-Man inadvertently activates the Infinity Union, granting Nebula immense power. This issue is a key chapter in a multi-part saga and is notable for collectors as it includes the first appearance of the robot guard Blockade.