Pokémon Masters EX explains Monthly BP Challenge rewards and exchange rules

Pokémon Masters EX published its Monthly BP Challenge guide on September 27, 2026. Players earn Battle Points by completing Region Rotation Battles and the Champion Stadium, then claim rewards—including special Sync Pairs—from the Monthly BP Challenge screen. The challenge unlocks after completing Main Story Chapter 1: The More the Merrier (Normal) in single-player.

The guide says rewards generally refresh at 06:00 UTC on the first of each month. Unclaimed rewards are automatically granted when players log in after the update, while earned Battle Points do not carry over. Monthly BP Challenge Vouchers are available only through the challenge and can be exchanged in the BP tab of Exchange Items; exchange items follow the monthly refresh schedule as well.

A related update notice says Battle Point Tier Rewards have been revamped and Lyra (Special Costume) & Marill have been added to the challenge. It also specifies an exception to the usual monthly timing: this month’s rewards reset at 11:00 p.m. PT on October 31, 2026, rather than September 30. Voucher exchanges in BP under Exchange Items begin at 11:00 p.m. PT on September 30.