In this section of our guide, we will share all the essential details about the M-B Regulations, including their rules, availability dates, restrictions, and the complete list of eligible Pokémon for battles.
M-B Regulations Dates and Duration
The Pokémon Champions M-B Regulations are scheduled to be available worldwide during the following dates:
Start date: June 17, 2026.
End date: September 2, 2026.
The M-B Regulations cover several seasons, including Season M-3, Season M-4, and Season M-5, which will take place consecutively throughout the summer.
M-B Regulations Rules and Restrictions
Ranked Battles held under the Pokémon Champions M-B Regulations use the following rules and permitted mechanics:
Pokémon limits: Teams of three to six Pokémon in Single Battles or teams of four to six Pokémon in Double Battles.
Held item restrictions: The same held item cannot be used by more than one Pokémon.
Battle time: 20 minutes.
Player time: 7 minutes.
Turn time: 45 seconds.
Team Preview time: 90 seconds.
M-B Regulations Seasonal Rewards
At the end of each season covered by the Pokémon Champions M-B Regulations, players can earn different rewards depending on the tier and rank they reached in Ranked Battles:
Keep in mind that you can earn these rewards twice, since you can claim them by ranking in both the Single Battle and Double Battle formats.
All Pokémon Eligible Under the M-B Regulations
The following Pokémon are eligible for battles held under the Pokémon Champions M-B Regulations. Many of them were already available under the M-A Regulations:
