The Pokemon TCG Destined Rivals Elite Trainer Box (ETB) is a sealed new product containing 90 standard-sized cards featuring characters from the Rivals set, including Mewtwo. Manufactured by Nintendo, the box includes exclusive promo cards and booster packs for players aged 6 and above. This English-language ETB is part of the Pokemon TCG game, making it a must-have for collectors and players looking to enhance their decks with unique and rare cards from the popular trading card game universe.