Pokemon TCG: Shining Legends Pin Collection- Mewtwo - Rules of Play says:
The Shining Legends: Mewtwo Pin Collection comes with a never before released Mewtwo Promo, a Pin of Mewtwo. Included also are 3x Pokemon Shining Legends Booster packs, which are exclusive to Shining legends products. and a code card for the Pokemon TCG Online game.