If you’re looking for a fun way to challenge your battling skills in Pokémon Sun and Moon, be sure to sign up and compete in the tiny tourney. This Online Competition features only Pokémon equal to or less than 1 meter (3’03”) tall, so you’ll have to think hard about how to create your best team. All qualified participants will earn Galladite, Gardevoirite, and Lopunnite Mega Stones. You can use nearly any Pokémon from the National Pokédex, including Pokémon brought in to your Pokémon Sun or Pokémon Moon game via Poké Transporter. View the complete list of eligible Pokémon in the competition regulations.
To register, log on to your account from the PGL homepage and select Online Competitions in the main menu. You’ll then be able to read and accept the regulations on the PGL. You’ll need a Pokémon Trainer Club account, your own Pokémon Sun or Pokémon Moon video game, and a Battle Team of eligible Pokémon. Accept the regulations on the Pokémon Global Link by Thursday, June 22, at 23:59 UTC, and get ready to battle! The competition goes from Friday, June 23, at 00:00 UTC, until Sunday, June 25, at 23:59 UTC. Remember that you are limited in the number of times you can battle per day. Remember to check back after the competition to see how you ranked in the tiny tourney and for details on how to claim your participation reward. Have fun battling with little Pokémon in the tiny tourney. Good luck, Trainers!
Source: Pokémon Global Link