[Free to play: Injustice 2 Mobile] - Solo Raid The Last Contract H5T5 Knightmare Batman

Fought with spare pips to speed up my progress. Boss Knightmare Batman is generally painful, but manageable. If necessary, just use HBHQ with Raven to one shot him. I am generally a FREE TO PLAY player, so I don't own powerful artifacts like beta club, sword of sin & salvation. I work with whatever that is given free.