Pokémon Sun & Moon will soon be hosting another battle competition later this month. The Weakness Cup will feature single battles using only Pokémon with five or more weaknesses. Registration for the competition will go from July 20th to the 21st and the actual Cup will take place from July 28th through the 30th. [Thanks, Serebii.]
Additionally, those who took part in the last competition, the Tiny Tourney, are now able to receive their gifts of Gardevoirite, Galladite and Lopunnite via the Global Link. The Mega Stone prizes will be obtainable through July 31st.
Pokémon Sun and Pokémon Moon are available for the Nintendo 3DS.