The collection features all Heroes divided into classes, except Fallen Heroes, who are not available there. When you get a Hero that is not in your collection yet, you receive rewards and exp. Exp and rewards are also given after ascending a Hero to a new grade. Exp is required to upgrade class levels that improve the bonus characteristics of Heroes. Bonuses are applied to all Heroes of the corresponding class. Obtain new Heroes and ascend them to increase the overall power of your squad.
