Just a few ideas brainstorming

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So was thinking of some things that could add a layer of either challenge or fun to the matches. 

1. Team-Up bonus: heroes who are related (x-men, avengers, gotg, etc) could have some kind of extra bonus when used together. Somewhere along the same lines as Marvel Future Fight for those who also play that game. Could be increased match dmg or even a unique set of powers that only activate when the criteria is met.

2. Gauntlet style matches. Similar to the Crash of the Titans but in a wave style match. The further you get the better the rewards.

3. Mano a Mano pvp style matches but with only one character.

Just a few ideas. Any input or additions welcomed.