Catching a rare Pokémon is an exhilarating experience, and watching one escape after a hard-fought battle is undeniably disappointing. But with the Pokémon GO debut of the Master Ball, Trainers are guaranteed to catch any Pokémon with this item, whether it’s encountered in the wild, after a Raid Battle, or while using Daily Adventure Incense.

Throughout Season 10: Rising Heroes, Trainers have been working on the Let’s GO! Special Research story. On May 22, 2023, at 10:00 a.m. local time, the final chapter of the research story will become available, and the intrepid researchers who complete this assignment will receive the coveted Master Ball as one of the rewards.

While there may be future opportunities to obtain an additional Master Ball in Pokémon GO, there’s currently no information about how or when they’ll become available, so be sure to use this one wisely.

Get your research on, Trainers!