I like having 5 teams more than 3, but I’d really like to have 10 to support Alliance Wars. I do build and try to balance the six war teams. I’m using a spreadsheet now, updating hero levels by hand and updating the power contributed by troops. I’d like to have the war teams be part of the game’s UI. It would be really cool to be able to fill the team for the current battle from a selected team, leaving gaps for any heroes already used.
I’d also want a defense team, as we have now, a team for general map use, a team I’m using to fight the current titan, and a team for experimentation or special handling during challenges.
Just as I’ve increased my hero cap by paying gems, I would be more than willing to pay more to support additional teams