Earth Plumbers were founded by Founding Fathers in 1700s. Initially called Plumbiers, they protected Earth from supernatural threats. Established secret bases at Mt. Rushmore, Fort Knox, and Space Needle. Fought against Vilgax and Lenopans until Max Tennyson defeated them
Born as Richard "Dick" Grayson in 1996, orphaned at age 9. Adopted by Bruce Wayne after his parents' death. Trained as Robin by Batman to fight mob boss Tony Zucco
Natasha Romanova is the world's most elite spy in any era. She excels in both melee and ranged combat with sniper rifle. Can switch between modes freely and use Widow's Bite Baton. Has Fleet Foot ability for increased movement speed
Ninjas were secretive warriors from lower classes in feudal Japan. Largest ninja clans were based in Iga and Koga domains. Ninjas fought only when necessary, making less historical record
Ninja trained as covert agents specializing in sabotage and espionage. Training requires operating at night and practicing stealth movements. Ninja must be extremely nimble and able to climb trees. Strength training includes swimming and jumping exercises
Anbu are covert ninja operatives dispatched by village leaders. No true ranks exist, leadership based on merit and experience. Selection based on personality, exceptional skills required. Konoha recruits must be at least 13 years old