eh, if he wants to pirate it he basically misses out on multiplayer, and there's no way he can even move gear across once he gets the real game, and considering how many people WB and even NRS have SCAMMED already on pc in recent history alone, well, I'm not going to shed any tears for them.
Due to the online component, age, and nature of the game, crack will probably be a long time coming, if at all.
You want a copy, for your own sake you are probably better off getting the game legitimately. It's quite cheap now on key resellers ($25 USD), and is dropping a little further each week.
https://www.g2a.com/injustice-2-steam-key-pc-global-i10000041488002?___store=australia