What is the current Pokémon Champions regulation set?

Regulation Set M-B is the current Pokémon Champions regulation set and is listed through September 2, 2026 at 01:59 UTC.

When does Pokémon Champions Regulation M-B end?

Regulation Set M-B is listed until September 2, 2026 at 01:59 UTC.

Where can I find the exact Regulation M-B eligible Pokémon and item rules?

Open Ranked Battles and use the in-game Check Rules screen before locking a team. The in-game roster is the authoritative source for exact Pokémon and item eligibility.

Current regulation

Pokémon Champions Regulation M-B Dates & Team Legality

Current: Regulation M-B ends September 2, 2026 at 01:59 UTC. Mega Evolution: one eligible Pokémon can Mega Evolve per battle. Exact legality: open Ranked Battles → Check Rules.

Last updated: 2026-08-09 Methodology Fan-made reference

Regulation controls team legality; the season controls ladder and reward deadlines. Pokémon HOME access does not prove ranked eligibility.

Regulation M-B at a glance

What to check Current answer and action

Active ruleset Regulation Set M-B. Use it when preparing a ranked team.

Regulation window June 17 at 02:00 UTC to September 2 at 01:59 UTC. Re-check your team when the next regulation is announced.

Mega Evolution An eligible Pokémon needs the matching Mega Stone. You can Mega Evolve once per battle.

Exact eligibility Use the in-game Check Rules screen. Verify every Pokémon, held item, and Mega Stone.

Season context M-4 is complete; M-5 is projected through September 2. Use the season timer for rewards and ladder deadlines.

Check your team in three steps

Open Ranked Battles → Check Rules and select the active Regulation M-B rules.
Review every team slot: confirm the Pokémon, held item, and Mega Stone. HOME transfer access alone is not proof of ranked eligibility.
Check again after updates: repeat this process when the game or regulation changes.

Official source: Regulation Set M-B notice confirms the public regulation window and Mega Evolution rule. The in-game Check Rules screen remains the final source for the exact eligible roster. See the methodology for how confirmed dates and projections are separated.

Optional: current M-B doubles metagame snapshot

Pokémon's July 24 overview describes Mega Charizard Y as a central benchmark, with Garchomp, Basculegion, Kingambit, Incineroar, and Sneasler among the leading non-Mega options. It also covers Mega Floette, Mega Scovillain, Mega Delphox, Mega Blastoise, Mega Gengar, and weather teams. Read the official Regulation M-B Double Battles Overview for the full strategy discussion.

Related guides

Live countdown Pokémon HOME transfer guide Season countdown Maintenance status Ranked rewards