Registration for the tiny tourney Online Competition has started. Trainers must put together a team of Pokémon all equal to or less than 1 meter (3’03”) tall for exciting Double Battles using Pokémon Sun and Pokémon Moon. 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 entire National Pokédex is available for you to choose from, as long as the Pokémon are under the maximum height requirement. Plus, Mythical Pokémon and some Legendary Pokémon will not be permitted. You can use the Poké Transporter to bring in Pokémon from earlier games. Pokémon can hold items, including Z-Crystals, but Mega Stones will not be allowed. Check the regulations for a complete list of Pokémon and items that are not permitted in the tiny tourney. The competition goes from Friday, June 23, at 00:00 UTC, until Sunday, June 25, at 23:59 UTC. Qualified participants will receive Galladite, Gardevoirite, and Lopunnite Mega Stones. Think big and come up with your best team of diminutive Pokémon to battle in the tiny tourney. Good luck, Trainers!
Source: Pokémon Global Link