Niantic has announced the full details for the GO Battle League: Season 10 Update which will on Monday, November 29th, 2021, at 1:00 p.m. PST (GMT −8).

GO Battle League: Season 10 Update

Trainers, GO Battle League Season 10 is set to kick off!

As previously announced, Trainers who reach Legend rank this season will be able to register early for certain Pokémon GO World Championship Series events! Stay tuned—additional details will be posted on the Pokémon GO World Championship Series page soon.

Season 10 Start Date, Rank Resets, and End-of-Season Rewards

GO Battle League Season 10 will start on Monday, November 29, 2021, 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 in Season 9.
• Pokémon appearing in GO Battle League encounters will now be slightly easier to catch.

Season 10 Schedule

The following leagues will begin and end at 1:00 p.m. PST (GMT −8) on the dates listed below.

Season 10 GO Battle Days

Bonuses

• The maximum number of sets you can play per day will be increased from five to 20, for a total of 100 battles.
• 4× Stardust from win rewards (this does not include the end-of-set rewards and will not stack with the 3× Stardust bonus on January 8).

Dates and Times

Saturday, January 8, 2022 from 12:00 a.m. to 11:59 p.m. local time

• The Master League and the Master League Classic will be active.

Sunday, January 23, 2022, from 12:00 a.m. to 11:59 p.m. local time

• The Great League and the Sinnoh Cup will be active.

Sunday, February 6, 2022, from 12:00 a.m. to 11:59 p.m. local time

• The Ultra League and the UL Premier Classic will be active.

Season 10 Rewards

Image of 1x Guaranteed Encounter Icon Guaranteed rank-up encounters

You can encounter the following Pokémon once per season at the designated ranks. At rank 1, you’ll be guaranteed to encounter one of the Pokémon that the leader of Team Flare, Lysandre, is known to use!


: If you’re lucky, you may find a Shiny one!
: Veteran Rank
: Expert Rank
: Legend Rank

Standard Encounters

You can encounter the following Pokémon in reward encounters throughout the season at the ranks shown in the image below.

Pokémon appearing in GO Battle League encounters will now be slightly easier to catch.


: If you’re lucky, you may find a Shiny one!
: The Pokémon currently appearing in five-star raids has a chance of appearing as a reward encounter after you reach rank 20.
: Veteran Rank
: Expert Rank

Avatar Items and Other Rewards

Pikachu Libre avatar items will be rewarded to Trainers who reach Rank 3.


Trainers will be able to earn avatar items and a pose inspired by the leader of Team Flare, Lysandre, who first made his debut in Pokémon X and Pokémon Y!

• Ace rank: Lysandre-Style Gloves
• Veteran rank: Lysandre-Style Shoes
• Expert rank: Lysandre-Style Pants
• Legend rank: Lysandre-Style Jacket and Lysandre Pose

At rank 19, you’ll receive an Elite Charged TM, and you’ll also receive an Elite Fast TM as an end-of-season reward.

Cups

You can look forward to the following cups this season.

Great League Remix

The 20 Pokémon most used by Trainers Ace rank and up in the Great League will not be allowed in the Great League Remix.

The following Pokémon will not be allowed.

Ultra League Remix

The 10 Ultra League Pokémon most used by Trainers Ace rank and up in the Ultra League will not be allowed in the Ultra League Remix.

The following Pokémon will not be allowed.

Holiday Cup

• Pokémon must be at or below 1,500 CP to enter.
• Only Normal-, Grass-, Electric-, Ice-, Flying-, and Ghost-type Pokémon are permitted.

Sinnoh Cup

• Pokémon must be at or below 1,500 CP to enter.
• Only Pokémon with a Pokédex number from #387 to #493 will be allowed.

Love Cup

• Pokémon must be at or below 1,500 CP to enter.
• Only red or pink Pokémon will be allowed.
• Eligible Red Pokémon: Charmander, Charmeleon, Charizard, Vileplume, Paras, Parasect, Krabby, Kingler, Voltorb, Electrode, Goldeen, Seaking, Jynx, Magmar, Magikarp, Flareon, Ledyba, Ledian, Ariados, Yanma, Scizor, Slugma, Magcargo, Octillery, Delibird, Porygon2, Magby, Ho-Oh, Torchic, Combusken, Blaziken, Wurmple, Medicham, Carvanha, Camerupt, Solrock, Corphish, Crawdaunt, Sunny Form Castform, Latias, Groudon, Normal Form Deoxys, Attack Form Deoxys, Defense Form Deoxys, Speed Form Deoxys, Kricketot, Kricketune, Trash Cloak Burmy, Trash Cloak Wormadam, Magmortar, Porygon-Z, Rotom, Tepig, Pignite, Emboar, Pansear, Simisear, Throh, Venipede, Scolipede, Krookodile, Darumaka, Darmanitan, Dwebble, Crustle, Scrafty, Autumn Form Deerling, Shelmet, Accelgor, Pawniard, Bisharp, Braviary, Heatmor, Fennekin, Braixen, Delphox, Fletchling, Fletchinder, Talonflame, Yveltal
• Eligible Pink Pokémon: Clefairy, Clefable, Jigglypuff, Wigglytuff, Slowpoke, Galarian Slowpoke, Slowbro, Galarian Slowbro, Exeggcute, Lickitung, Chansey, Mr. Mime, Porygon, Mew, Cleffa, Igglybuff, Flaaffy, Hoppip, Slowking, Galarian Slowking, Snubbull, Corsola, Smoochum, Miltank, Blissey, Whismur, Skitty, Milotic, Gorebyss, Luvdisc, Cherubi, Sunshine Form Cherrim, Mime Jr., Happiny, Lickilicky, Mesprit, Munna, Musharna, Audino, Spring Form Deerling, Alomomola, Spritzee, Aromatisse, Sylveon

Johto Cup

• Pokémon must be at or below 1500 CP to enter.
• Only Pokémon with a Pokédex number from #152 to #251 will be allowed.

Attack changes

Rock Tomb: This attack will now have an additional effect when it’s used in Trainer Battles.

• Trainer Battles: Guaranteed to lower the opposing Pokémon’s Attack.

Pound:

• Trainer Battles: 5 → 4 damage

Bug Buzz: Bug Buzz will gain a slight increase in damage to boost Wormadam’s, Vespiquen’s, and Yanmega’s Bug-type Charged Attack options.

• Trainer Battles: 90 → 100 damage
• Gyms and raids: 90 → 100 damage

Attack Availability Updates

Please be aware of your surroundings and follow guidelines from local health authorities when playing Pokémon GO. Upcoming events are subject to change.

Source: https://pokemongolive.com/post/gobattleleague-season10/?hl=en