Challenge Battles are optional combat encounters found throughout each world, marked by a red flag icon. These battles often present unique objectives or enemy compositions that test your tactical prowess. Completing them rewards you with Power Orbs, coins, and sometimes even exclusive weapon skins. There are two types of challenges: 'Normal' and 'Hard'. Hard challenges are unlocked after completing the main story of a world. It's highly recommended to attempt these challenges as you encounter them, as the Power Orbs are crucial for upgrading your characters' skill trees. Some challenges might require specific team compositions or strategies, so don't be afraid to experiment if you're struggling.
