Justice league villains fight each character in each round. Jl knows about them but the villains don't know about them. Batman has prep for the Justice league.
Jl consist of. Superman,Hal Jordan, Wonder woman, Aqua man, Batman, Flash, Cyborg.(New 52 version).
Round 1 - 7 Sentinels
Round 2 - Mr Sinister
Round 3- Brotherhood of evil Mutant(Pyro, Blob, Toad, Quicksilver, Scarlet Witch(powers she had during her stay in the team),Mystique,Avalanche
Round 4- Magneto
Round 5- Shadow King
Round 6- Hellfire Club (Sebastian Shaw, Selene, Harry Leland,Mastermind, Donald Pierce, Emma frost, Tessa)
Round 7- Cassandra Nova
Round 8- Apocalypse
Round 9- Dark Phoenix