Set 1 (Mezastar)

The inaugural Pokémon Mezastar set debuts Pokémon from several Generations, with particular focus on ones from the first and eighth. Pokémon Sword and Shield mascots Zacian and Zamazenta are featured as Grade 6 Superstar Pokémon, as are the final evolutions of the Kanto starter Pokémon Venusaur, Charizard, and Blastoise. Zacian and Zamazenta appear in their Crowned Sword and Crowned Shield forms, while the final starters each have the ability to Mega Evolve. Other powerful Superstar Pokémon include the super-ancient Kyogre, Groudon, and Rayquaza, Alolan Ninetales, and the Pokémon mascot Pikachu. Alolan Ninetales and Pikachu can both use Z-Moves.

The set also debuts a number of other Pokémon, including the families of the Kalos and Galar starters, Eevee and its Generation I Eeveelutions, and a Shiny Celebi. The inclusion of the latter is a likely reference to the one that appears in Secrets of the Jungle, the initial release date of which would have closely coincided with the intended launch of Pokémon Mezastar, if not for their postponement due to the COVID-19 pandemic.

Players recording activity on the Mezastar Club while this set was in operation unlocked a digital Support Pokémon Ticket that could be scanned when playing Get in Battle! mode, adding Zygarde in its Complete Forme to the player's Support Pokémon roster for that session. Three Partner Pokémon were also available to players with Memory tags with the launch of this set: Grookey, Scorbunny, and Sobble.

Partner Pokémon

Grookey Branch Poke → Thwackey Razor Leaf → Rillaboom Drum Beating

Scorbunny Ember → Raboot Flame Charge → Cinderace Pyro Ball

Sobble Water Gun → Drizzile Water Pulse → Inteleon Snipe Shot

Support Pokémon Ticket

Available through the Mezastar Club from September 17, 2020 Valid until February 9, 2021 Zygarde Land's Wrath