Justice League of America Vol. 1 (1960-1987) #112

Plot

War with the One-Man Justice League !

After the villain Libra stole half their powers, the League is desperate to recover them. They decide to reactivate Amazo, the android who can copy and hold every superpower, planning to let him absorb their abilities and then transfer them back. But Amazo realizes he’s being used, turns against them, and becomes a one-man army with all their combined powers. Now the League must fight the most powerful version of themselves ever created.

"The Black Star Shines !"

Starring the Seven Soldiers of Victory, classic Golden Age adventure against the cosmic menace Black Star. The backup tale follows the Seven Soldiers hunting the criminal mastermind known as Black Star, who threatens to destroy entire worlds with his energy manipulations. The team must split up to overcome his deadly traps and finally confront him in his orbital fortress.

"The Super-exiles of Earth !"

Also known as "Attack of the Star-Bolt Warrior". When a powerful alien entity called the Star-Bolt Warrior arrives on Earth, he mistakes the Justice League for invaders and attacks them. To save the planet without causing destruction, the League voluntarily exiles themselves to another dimension, where they must find a way to prove their innocence and stop the warrior before he unleashes his full power on Earth.