Below is a breakdown of how to play custom decks against TCG Online's AI mode. Unfortunately, TCG Online has limitations for custom decks.

Physical Pokémon TCG card packs include special code cards, which can be redeemed for digital packs to build custom decks in the versus mode. Not every player wants to play online, though, and instead would rather practice with the game's computer opponents. TCG Online also allows collectors to bring their real-life Pokémon cards into the digital game through the game's redeeming feature. Related: Pokémon TCG - Coolest Trainer Gallery Cards In Astral Radiance After building a custom deck with 60 Pokémon cards, TCG Online players can immediately take it into battle using the game's 'versus' mode, which quickly pairs them off with another trainer.

Trainers who have enough cards can start making their own custom decks using the game's deck builder feature. Although Pokémon TCG Online is a digital version of the card game, players are actually able to build up their own collection of cards in the app.