This display box contains 36 booster packs, each with 11 tradable game cards.

Gear up for battle with the Gym Heroes™ expansion!

Every Pokémon trainer has a unique philosophy on how to best prepare Pokémon for battle. In the Gym Heroes expansion, some of the world's best Pokémon gym leaders have specially trained their Pokémon to create an all-new trading card game adventure. Team up with Misty, Brock, Lt. Surge, and Erika, and become a gym hero!