Arena: Profit from the Permanent "Duel" Effect
If you deploy a Lv. 40 5★ Duo Hero in modes like Arena, higher-scoring opponents will appear even if the unit's stat total is low, helping you to climb the tiers.
Grand Hero Battles: Take Advantage of Duo Skills
Duo Skills can have a number of powerful effects, such as neutralizing effective attacks or increasing movement range. Find the right opportunity to use these skills to give yourself a powerful advantage in Grand Hero Battles, whether you've found yourself surrounded or you're about to launch a devastating attack.
Other Modes: Using Duo Skills in Aether Raids
Some Aether Raid structures can increase the number of times Duo Skills can be used or nullify Duo Skills on certain turns. Keep an eye out for those structures when checking out your opponent’s defenses!
