The next Online Competition featuring the Pokémon Ultra Sun and Pokémon Ultra Moon games provides an early glimpse into the action that you’ll see at the 2019 Pokémon World Championships. In the World Championships Friendly Online Competition, Trainers create a team using Pokémon from the National Pokédex No. 001 through 807, excluding Ash-Greninja and all Mythical Pokémon. You will also be able to include up to two Legendary Pokémon normally restricted from play, which should lead to some thrilling battles.
Registration for the World Championships Friendly Online Competition takes place Thursday, September 6, 2018 (00:00 UTC). All Trainers will need a Pokémon Trainer Club account, a wireless internet connection, and their own Pokémon Ultra Sun or Pokémon Ultra Moonvideo game with a party of eligible Pokémon. See the competition regulations for more details. The competition runs from Friday, September 14, 2018 (00:00 UTC), through Sunday, September 16, 2018 (23:59 UTC). Trainers will be limited to 10 battles per day.
The competition features Double Battles with teams of no duplicate Pokémon. All Pokémon will be set to Lv. 50 for the duration of the battles. Items are permitted, but duplicate items are not allowed. There will be a 7-minute player clock with 45-second turns. All qualified participants in the World Championships Friendly Online Competition will receive 50 Battle Points. Players must complete at least one battle to qualify.
Source: Pokémon Global Link