The Might and Mastery Season enter it’s final week as May draws to a close, and kicks off the start of GO Fest season! Get ready for Urshifu in GO Battle Week, the debut of Gigantamax Rillaboom and increased shiny chances to encounter Munna and Morelull! With Mega Altaria and Tapu Bulu in raids, evolving bonuses, Spotlight and Raid Hours, and GO Battle League action, there’s something for every Trainer to dive into!
Highlights
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The GO Battle Week: Final Strike takes place from Wednesday, May 21, at 10:00 a.m. to Tuesday, May 27, 2025, at 8:00 p.m. local time. |
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The Serene Retreat event runs from Friday, May 30, at 10:00 a.m. to Tuesday, June 3, 2025, at 8:00 p.m. local time. |
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From May 25 to June 3 Mega Altaria features in mega raids. |
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From May 25 to June 3 Tapu Bulu returns to five-star raids. |
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Battle enthusiasts can gear up for the GO Battle League Season 22 |
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And keep your eyes peeled for the elusive Shiny Shadow Regirock! There’s a plethora of adventures waiting, so trainers, gear up and set out! |
Urshifu is coming to Pokémon GO, during the Final Strike GO Battle Week event, which takes place from Wednesday, May 21, at 10:00 a.m. to Tuesday, May 27, 2025, at 8:00 p.m. local time. Alongside Urshifu, there are several featured Raid Bosses, the final stage of the Might & Mastery Season-Long Special Research unlocks, and more!

During Pokémon GO Fest: Osaka, Japan, a global, free-to-play, event called Serene Retreat will take place. Serene Retreat brings an increased chance to encounter Shiny Munna and Shiny Morelull, but also the debut of Gigantamax Rillaboom!
On Tuesday, May 29th, from 6 PM to 7 PM local time, Golett will be the featured Pokémon for Spotlight Hour, along with 2× Stardust for catching Pokémon!
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2× Stardust for catching Pokémon
Raid Hour
On Wednesday, May 28th, from 6 PM to 7 PM local time, Tapu Bulu will be the featured Pokémon for Raid Hour!
Five-Star Raids
From May 25th to June 3rd, Tapu Bulu will appear in the five-star raids.
- Related guide: Tapu Bulu Raid Guide
Mega Raids
From May 25th to June 3rd, Mega Altaria will appear in Mega Raids.
- Related guides: Mega Altaria Raid Guide
Shadow Raids
One-star and three-star Shadow Raids will be available daily, while five-star Shadow Raids will take place on Saturdays and Sundays unless otherwise noted. Also, Shadow Regirock will swoop into five-star Shadow Raids during Might & Mastery! You may even encounter a Shiny Shadow Regirock—if you’re lucky!
Max Mondays
On Monday, May 26th, from 6 PM to 7 PM local time, Dynamax Rookidee will appear in Max Battles.
Max Battles
From May 26 – June 2 the following Max Battles will take place:
Available to claim from Wednesday, March 5, at 10:00 a.m. to Tuesday, June 3, 2025, at 9:59 a.m. local time, you’ll encounter Dynamax Kubfu and more with this Season’s Special Research!
New parts of the Special Research will unlock over the course of the Season, so make sure to keep an eye on your research tab.
Starting May 1, 2025, Trainers will be able to purchase the brand new Power Up Ticket for May in the latest Season of Pokémon GO, Season of Might and Mastery.
This ticket will help Trainers to get the most out of Season of Might and Mastery by granting bonuses such as one additional Candy XL awarded to Trainers level 31 and up for completing Raid Battles and Max Battles!
For US$4.99 (or the equivalent pricing tier in your local currency), you’ll be able to access bonuses and Timed Research opportunities throughout May.

GO Battle League: Might and Mastery begins Tuesday, March 4, 2025, at 1:00 p.m. PST (GMT −8).
The following will occur at the beginning of the Season:
- End-of-Season rewards will be available on the Battle screen.
- Your GO Battle League rank will be reset.
- Rank-up requirements will remain the same as the prior Season.
Active Cups and Leagues this week
Dates | Cups |
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May 20th to May 27th |
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May 27th to June 3rd |
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*4× Stardust from win rewards (this does not include end-of-set rewards)
The following bonuses are specific to the Season of Might and Mastery:
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Increased friendship bonus damage dealt by Pokémon in raids. -
Trainers level 31 and above will receive one guaranteed Rare Candy XL when defeating a five-star Raid Boss during a Raid Hour. -
Trainers level 31 and above will receive one guaranteed Candy XL when trading Pokémon. -
Increased Stardust for the first catch of the day.
Encounter Pokémon by completing the Research Breakthrough! Complete Field Research to unlock Research Breakthrough encounters with one of the following Pokémon:
A note on Seasonal Field Research tasks
During the Season of Might and Mastery, most Field Research tasks will be available during the entire Season, instead of changing every month. Field Research tasks that award an encounter with Spinda will still rotate monthly. Field Research available during in-game events will replace some of these Field Research tasks.
Different Pokémon will appear in the wild! As the Season changes, different Pokémon will appear in different areas across the world.
Mountains
Hemisphere exclusive encounters
Different Pokémon will appear in the Northern and Southern Hemisphere as well:
Northern Hemisphere
Southern Hemisphere
The following Pokémon hatch from Eggs this Season. These are just some highlighted Egg hatches, more Pokémon can hatch from each egg group!
2 km Eggs
5 km Eggs
7 km Eggs
10 km Eggs
Adventure Sync Rewards
The following Pokémon hatch from Adventure Sync Eggs this Season. These are just some highlighted Egg hatches, more Pokémon can hatch from each egg group.
5 km Eggs
10 km Eggs
Routes Rewards
7 km Eggs from Mateo Gift Exchange
The post This Week in Pokémon GO (26 May – 1 June 2025): Events, Bonuses, and Raids You Shouldn’t Miss appeared first on Pokémon GO Hub.