A sealed Pokémon TCG XY Steam Siege booster pack, sold individually. The Mythical Steam Pokémon Volcanion anchors the set, with Shiny Mega Gardevoir-EX and a Xerneas BREAK against Yveltal BREAK matchup running through the card list.

• Set: XY, Steam Siege
• Era: XY series
• Product type: Single booster pack
• Contents: 10 game cards
• Set size: Over 110 cards
• Featured cards: Volcanion, Shiny Mega Gardevoir-EX, Xerneas BREAK, Yveltal BREAK