Pokemon TCG: Champion's Path Pin Collection - Ballonlea, Spikemuth and Hammerlocke Gyms: - Rules of Play says:

Every Pokémon Trainer's journey is unique, but for Trainers in Galar taking on the Gym Challenge, there's a clear path to victory. Celebrate that journey and the incredible Gym Leaders you meet along the way with the Pokémon TCG: Champion's Path Pin Collection featuring Opal's Fairy-type Ballonlea Gym, Piers's Dark-type Spikemuth Gym, and Raihan's Dragon-type Hammerlocke Gym. Earn your Gym badge at each stop along the way, add a Gym Leader's partner Pokémon to your team, and continue your path to victory!