You can form a team with up to six characters from the Dragonball universe. Each card has its own Cost that will count towards the player's Cost Limit. The overall Team Cost should not exceed your Cost Limit. Rarer and more powerful characters have higher Costs. This setup limits the amount of powerful characters players can include in their team. You can increase your Cost Limit by Ranking Up as well. If ever you have unassigned spaces in your team due to this limitation, basic Saibamen characters will be automatically assigned to fill them.
When going to battle, you'll be allowed to invite a guest character or a friend who will help you clearing the map. This additional character doesn't count towards the party's cost limit.