This is THE set to get if you want to learn how to play the Pokémon Trading Card Game (TCG). Comes with 3 pre-constructed decks with matching tutorial guides, a game board and related accessories (coin, damaged counters, etc).
Cheapest out of all the bricks-and-mortar stores too.
How complicated is it to learn the trading card game? I have a 7yo who would like to learn but I don't know if it's suitable