Pokémon XY Steam Siege Booster Box

Configuration: 36 Packs Per Box, 10 Cards Per Pack

Step back into the XY era with the legendary Pokémon XY Steam Siege Booster Box, one of the most unique and underrated releases in the Pokémon TCG.

Steam Siege delivers a powerful mix of dual-type Pokémon, Mega Evolutions, BREAK cards, and fan-favorite Mythical Pokémon, creating a set packed with nostalgia, strategy, and collector appeal. Featuring iconic cards such as Volcanion-EX, Gardevoir-EX, Steelix-EX, and the stunning secret rare Pokémon and Trainer cards, this set remains a favorite among sealed collectors and longtime fans of the XY generation.

Each booster box contains 36 booster packs loaded with opportunities to pull holographics, ultra rares, full arts, BREAK cards, and secret rares from a diverse and memorable card list. The set’s distinctive Steel and Fire theme gives Steam Siege a look and feel unlike any other release from the XY era.

Whether you are chasing vintage XY-era hits, building your sealed collection, or opening packs for the thrill of the hunt, the XY Steam Siege Booster Box offers a classic Pokémon opening experience with strong nostalgia and long-term collectible appeal.