Season 12

Season 12 of GO Battle League, also called GO Battle League: Season of Light, lasts from September, 2022 to December , 2022. It is preceded by Season 11 and will be succeeded by Season 13. This GO Battle League Season runs concurrently with Season of Light.

Formats
Little Jungle Cup Remix: 500 CP limit. Only Normal-, Grass-, Electric-, Poison-, Ground-, Flying-, Bug-, and Dark-types allowed. Skorupi, Cottonee, Ducklett, and Salandit banned.

Psychic Cup: 1,500 CP limit. Only Psychic-types allowed. Mew banned.

Weather Cup: 1,500 CP limit. Only Fire-, Water-, Ice-, and Rock-types allowed.

Ultra Premier Classic: 2,500 CP limit. Legendary Pokémon, Mythical Pokémon, Ultra Beasts, and Pokémon powered up with Candy XL banned.

Master Premier Classic: No CP limit. Legendary Pokémon, Mythical Pokémon, Ultra Beasts, and Pokémon powered up with Candy XL banned.

Evolution Cup: 1,500 CP limit. Only Pokémon that have evolved at least once and can evolve again allowed.

Halloween Cup: 1,500 CP limit. Only Poison-, Ghost-, Dark-, and Fairy-types allowed.

Halloween Cup: Ultra League Edition: 2,500 CP limit. Only Poison-, Ghost-, Dark-, and Fairy-types allowed.

Willpower Cup: 1,500 CP limit. Only Fighting-, Psychic-, and Dark-types allowed. Gardevoir banned.

Ultra Premier: 2,500 CP limit. Legendary Pokémon, Mythical Pokémon, and Ultra Beasts banned.

Element Cup Remix: 500 CP limit. Only Fire-, Water-, and Grass-types allowed. Only Pokémon that are able to evolve and have not evolved even once allowed. Chinchou, Cottonee, Ducklett, and Salandit banned.

Catch Cup: Season of Light Edition: 1,500 CP limit. Only Pokémon caught during the Season of Light allowed.

Rewards
Basic Premium

Stardust The random items can include:
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Reaching Legend rank could earn avatar items inspired by Guzma.

Guzma Watch and Bracelet could also be obtained from GO Battle Day rewards.

Pokémon
Guaranteed first Pokémon encounters:
 * Pinsir: rank 1 (one only)
 * Mienfoo: rank 6
 * Axew: Ace rank
 * Noibat: Veteran rank
 * Goomy: Expert rank
 * Pikachu Libre: Legend rank (one only)

Certain Legendary Pokémon could be obtained starting at rank 20 during their time in tier 5 Raid Battles.

End-of-season rewards

 * (rank 19 or above)

GO Battle Day: Guzma
GO Battle Day: Guzma took place on October, 2022 from 12 a.m. to 11:59 p.m. local time. Master League and Master Premier Classic were available during this GO Battle Day. Stardust from completing sets would not be counted for the bonus.

GO Battle Day: Miltank
GO Battle Day: Miltank took place on November, 2022 from 12 a.m. to 11:59 p.m. local time. Ultra League and Willpower Cup were available during this GO Battle Day. Stardust from completing sets would not be counted for the bonus.

Attack Updates
At the start of this Season, certain Attacks had their stats changed, certain Pokémon received updates to their obtainable Attacks, and new Attacks were added.

Attack Availability Updates
Some Pokémon received updates to their obtainable Attacks. These were added to their standard Attack pools.