I really don't care how you guys set your selves up. You could elect a supreme commander, divide into independent squads, or just run amok as a mob. It's up to you guys.
The only thing that matters to me, is that I need to know who to give gold, equipment, and special cards to. I'll leave it to you guys to figure out, or just let you fight over the stuff.
Teams are limited to playing a certain number of cards per day, no matter how many different team members hold them. First cards posted are the first played.
