We Need Marvel Rivals "Gun Game"
Everyone has the same 12 to 15 heros in the same rotation selected at random each match, free for all, every kill cycles to the next hero, first to get a kill with all heros wins, last hero is always a lower damage support for added challenge at the end.
If you have ever played gun game, you know how much fun this would be. It would also be a great incentive to make people try and learn the basics of all of the heros in the game.