There is a new combat format that inculdes stamina and items. You can buy items using $'s. After a combat, you will win 1, 2 or 3 stars. If you win 2 or 3 stars, you will get a reward, but if you have 1 star, so sorry you cannot have anything. When a dragon dies, you have to heal it for 1 cash. The more you play combats, the higher your dragons health wil be!