The Pokemon Break Through Mini Portfolio XY & Forbidden Light Set includes 4 packs of cards featuring characters like Mewtwo from the Pokemon TCG game. Each pack contains 10 cards, with a total of 40 cards in the set. Manufactured by Nintendo in 2021, the English-language cards are suitable for ages 6 and up and come in standard size. This booster pack set is perfect for collectors and players looking to enhance their card collection with new and exciting cards from the popular Pokemon universe.