18th June 2026; 12:04 IST
TL;DR: Pokémon Champions has officially arrived on iOS and Android, offering full cross-play with the Nintendo Switch. Coinciding with the mobile launch, the massive Regulation M-B update has gone live, adding 22 new Pokémon (including 16 Mega Evolutions), new abilities like Eelevate and Fire Mane, and a special mailbox gift featuring Mega Raichu X and Y stones.
The competitive Pokémon battling landscape is shifting. Following its successful Nintendo Switch launch earlier this spring, the free-to-play strategy title Pokémon Champions is now available on iOS and Android devices as of June 17, 2026. This mobile debut significantly expands the player base, introducing cross-platform matchmaking and seamless account syncing. To mark this milestone, developer Tsunekazu Ishihara's team has rolled out Regulation M-B, the game's largest content update yet, which completely redraws competitive team-building strategies.
With the mobile release, Pokémon Champions now supports full cross-platform play, allowing mobile players to challenge Nintendo Switch users in real-time ranked matchups. Players who connect their accounts to Pokémon HOME can transfer their partner Pokémon. To welcome new trainers, a special launch bonus is available in the in-game mailbox until September 1, 2026. This promotion includes a free Raichu alongside both Raichunite X and Raichunite Y, enabling players to immediately experiment with the game's newest custom Mega Evolutions.
Running from June 17 through September 2, 2026, Regulation M-B expands the competitive pool by introducing 22 new Pokémon, including 16 brand-new Mega Evolutions. This roster update addresses early community feedback regarding the game's limited initial character selection. Key additions to the battle roster include:
Beyond roster additions, Regulation M-B introduces two highly impactful abilities exclusive to new Mega Evolutions, designed to create unique niche roles in the meta:
Along with these abilities, the update implements 15 new held items, providing trainers with deeper customization options for team synergy. Competitive players can test these elements in the upcoming Monthly Challenge Series, which will adopt the Regulation M-B Single Battle format.
What is Regulation M-B in Pokémon Champions?
Regulation M-B is the latest competitive ruleset and content update running from June 17 to September 2, 2026, introducing 22 new Pokémon, 16 Mega Evolutions, and new held items.
How can I get Mega Raichu in Pokémon Champions?
To celebrate the mobile launch, all players can claim a free Raichu along with Raichunite X and Y Mega Stones from their in-game mailbox until September 1, 2026.
Does Pokémon Champions support cross-play between mobile and Nintendo Switch?
Yes, Pokémon Champions supports full cross-platform play and account synchronization between iOS, Android, and Nintendo Switch.
Official and reputable references used for this post:
Official Pokémon Portal (Mobile launch announcements & rulesets)
IGN (Regulation M-B meta details & patch notes)
Smogon Community Forums (Mega Evolution & ability analysis)
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