The Pokémon TCG XY Steam Siege Prerelease Kit is a sealed build and battle product from the XY series of the Pokémon Trading Card Game. It holds enough cards for one player to put together a deck and start playing, suited to prerelease style events and kitchen table games.

• Set: Steam Siege, Pokémon TCG XY series
• Type: Prerelease kit, sealed
• Contents: 4 Steam Siege booster packs
• Prerelease pack: 23 cards, including 1 of 4 exclusive foil promo cards

Also available as a sealed case of 10 units.