You can switch in between the heroes in your party whenever you remain in a battle. By just tapping on their profile icon on the left side of the screen you will have the ability to switch in between them. The other heroes in your party will continue to auto attack and cast abilities, while the one that you've picked will just use the abilities that you use! It's an enjoyable way to play in case you get tired of merely being in the front line. You can quickly switch to another character and adjust to their class!