Since alliance wars requires 6 teams. I think the SG devs should increase the amount of teams we can have. Allow us to have six teams, why not? It would make it easier to know which heroes you can feed to others and can help us quickly calculate the power of our sixth team.
Just a suggestion, it seems like it would be an easy upgrade for the devs to add to the game.
Look forward to hearing if anyone else agrees with me, or if this is just a personal desire of mine.