Pokémon Masters EX has kicked off the Special Event Battle Countdown, now underway through Dec. 30. The limited-time event challenges players with a series of battles that ramp up in difficulty, rewarding preparation and smart team choices. Completing stages and missions earns useful items, making it a solid option for players looking to strengthen their roster before the year wraps up. Running alongside other holiday events, the Battle Countdown adds a more combat-focused option to the schedule, giving players another reason to log in and test their sync pairs before the deadline.
Source: Official Pokémon Masters EX site