Pokémon for Game Boy was adapted into a TCG called Pokémon Trading Card Game. This TCG was in-turn adapted into a Game Boy game called Pokémon Trading Card Game.
The only logical step here is to create a card game adaptation of the video game version of the TCG that fully replicates the adventuring mechanics of the video game. Approximate the concepts of traveling to clubs and challenging club masters to duels to earn Master Medals into card game format.