Elite Trainer Box Pokemon emerged in 2014 as premium bundles in the Pokémon Trading Card Game. Initially offering deck-building accessories and booster packs, they quickly became sought-after items for collectors and players alike. With each new set release, Elite Trainer Boxes offer exclusive promo cards, deck sleeves, and dice. They've become a staple for fans, offering a comprehensive and exciting way to delve into new expansions while providing valuable collectibles.