Do something about pvp matchmaking
Anything. I have no 5s, the pvp I was in did not seem to give me any super high level characters. It did not boost everyone to level 500. But my mostly 3 star roster was facing level 300+ thanos and black panther. How is this in any way feasible? If player x has no five stars then don't match them vs 2 five stars. I'm sure that's easy to code.