I think the option to preset teams would be great. For example: I have 4 teams that I play with alot. One team is 2* Thor, 2* Storm and 2* OBW. Another team is 5* Strange, 3* IF and 3* SW. I also have a team with 5* Thanos, 5* Black Panther and 5IM. Finally, I have a team with 3 Storm, 3* Hulk and 3* KK.
Instead of making me scroll thru my roster to pick my team, it would be much easier if I could just press a button named “Teams,” then get a list of my preset teams, then pick one and I’m ready for battle. It could be an infinite amount of slots but I think 4 should be enough.
Just a thought.