Part of the Sword & Shield era of the Pokémon trading card game, the 2021 Evolving Skies expansion focuses on dragon- and sky-themed Pokémon like Rayquaza. This sealed Build & Battle Box features Rayquaza VMAX bursting through swirling green-and-pink clouds on its vibrant, foil-style cover art. Inside, collectors and players will find four Evolving Skies booster packs and a 23-card Evolution deck kit, which includes one of four exclusive prerelease-stamped promo cards (such as Galarian Moltres). Originally released at early prerelease events, this collectible kit combines ready-to-play deck-building content with eye-catching holographic artwork, making it a sought-after item for Pokémon TCG players and collectors.