Injustice Batman gets a super pill that lasts throughout the entire duration of the fight, a week of prep and his suit at the end of Injustice 2.
Morals on, but injustice Bats is willing to kill by any means necessary.
Standard gear for the team.
Battle takes place in an abandoned Metropolis, indestructible Earth. Starts 50 feet away. KO, Incap or death counts as a win.
REBIRTH FEATS ONLY (sorry for the caps, but people seem to have trouble grasping this)