The threat posed by Starro the conqueror was great. TOO great for a single hero to combat. So despite the fact that he 'works alone' Batman's idea was to collaborate. Earth's mightiest in a single team. Superman, Batman, Wonder Woman, The Flash, Green Lantern, Aquaman and the Martian Manhunter became the Justice League.
TEAM ABILITY
The JLA are seasoned heroes and are an efficient force at battling evil. All JLA figures may move without using an action.
ROLL-CALL
Aquaman
Huntress
Steel
Flash
Superman
Blue Beetle
Plastic Man
Batman
Booster Gold
Hawkman