Challenge the Strong is permanent battle content where powerful Sync Pair bosses will be waiting for you.
You can access it from within the Side Area section.
This is an Ultimate Battle with the Ultimate difficulty level.
The difficulty level is quite high, so try to power up your teams by doing things such as unlocking tiles on your Sync Pairs’ Sync Grids, unlocking Lucky Skills, and upgrading your gear, then strategically construct teams to help you achieve victory.
You can view Boss Hints on the battle preparation screen for each battle.
We plan to add more battles to this content in the future.
We hope you continue to enjoy Pokémon Masters EX.