The official Pokémon website has announced the details for Pokémon Ranked Battles Series 7 for Pokémon Sword and Pokémon Shield which starts November 1st, 2020.

Pokémon Ranked Battles Series 7 for Pokémon Sword and Pokémon Shield Starts November 1

Learn which Pokémon from Pokémon Sword and Pokémon Shield will be allowed to participate in Ranked Battles Series 7.

A new Ranked Battles series is kicking off November 1, and Pokémon Sword and Pokémon Shield Trainers need to know which Pokémon can be included on their teams. The Series 7 regulations will also be in effect for the Pokémon Players Cup II Region Qualifiers and upcoming Pokémon Video Game Championship events.

For Series 7, Pokémon that were banned in Series 6 will return, making all Pokémon that were legal in Series 5 usable once again. Although Mythical Pokémon remain excluded, many Pokémon from The Crown Tundra will now be allowed—including a large number of Legendary Pokémon, though some of them will not have Crown Tundra Pokédex numbers.

Eligible Pokémon

• Pokémon need to have either the Galar symbol—showing that they were caught, received, or hatched in the Galar region—or the battle-ready symbol, showing that they were transferred from another game and adapted to battles in the Galar region.
• All Pokémon from the Galar Pokédex, the Isle of Armor Pokédex, and the Crown Tundra Pokédex as well as certain other Pokémon are permitted except for Mythical Pokémon and certain Legendary Pokémon.
• Pokémon with the Gigantamax Factor are permitted.
• All Pokémon will be set to Lv. 50, including Pokémon below Lv. 50.
• Duplicate Pokémon are not allowed.
• Duplicate held items are not allowed.

Timer Regulations

• Each battle begins with a 90-second Team Preview phase.
• In each battle, players have the following time limits.
  • 7 minutes of Your Time
  • 45 seconds of Move Time
  • 15 minutes of Game Time

Source: https://www.pokemon.com/us/pokemon-news/pokemon-ranked-battles-series-7-for-pokemon-sword-and-pokemon-shield-starts-november-1/