After you have submitted your cards/team, you are frequently waiting (sometimes for a while) for your opponent to sumbit their team.
If you are the first to sumbit your team, instead of the current “waiting” window, I think it would be great if you could be allowed to go back to your cards so you may view them, and even re-submit your team (if you can do so quick enough!).
I think this would be greatly appreciated by users, puls it also would make the constant “waiting for opponent” a lot less boring (because instead of just waiting, can at least you can view your team, check out the rest of your in-play deck, etc - even if you don’t want to revise the team)