Pokémon Steam Siege Expansion – Singles, Mega EX & Secret Rares
Power up with Pokémon TCG: XY—Steam Siege, the eleventh main expansion in the XY series. Released on 3rd August 2016, Steam Siege introduced the Mythical Pokémon Volcanion and Magearna to the trading card game alongside a wave of BREAK Evolution cards.
Featuring fan favourites including Volcanion EX, Magearna EX, Gardevoir EX, Mega Gardevoir EX, Mega Steelix EX, Xerneas BREAK and Yveltal BREAK, Steam Siege offers collectors a mix of Mythical Pokémon and striking Full Arts.
Whether you're opening booster packs, completing an XY master set or investing in sealed Pokémon products, Buy Any Cards offers authentic Steam Siege booster boxes, Elite Trainer Boxes, booster packs, singles and graded Pokémon cards.
Steam Siege Overview
Set Name: XY—Steam Siege
Set Code: STS
Release Date: 3rd August 2016
Cards in Set: 114 Main Set Cards + 2 Secret Rares (116 Total Cards)
Era: XY
Featured Pokémon: Volcanion EX, Magearna EX, Gardevoir EX, Mega Gardevoir EX, Mega Steelix EX, Xerneas BREAK, Yveltal BREAK
Products Available: Booster Boxes, Booster Packs, Elite Trainer Boxes, Theme Decks, Singles, Graded Cards, Sealed Products
Steam Siege combines cards from the Japanese Fever-Burst Fighter and Cruel Traitor sets. Its two Secret Rares are Full Art versions of Volcanion EX and Gardevoir EX.
Collectors can discover:
- Pokémon-EX cards
- Mega Evolution Pokémon-EX
- BREAK Evolution cards
- Full Art Pokémon-EX
- Full Art Trainer cards
- Secret Rare cards
- PSA Graded cards
- Master Sets
Shop Steam Siege:
- Booster Boxes
- Booster Packs
- Elite Trainer Boxes (ETBs)
- Theme Decks
- Singles
- Graded Cards
- Sealed Products
Whether you're chasing the Secret Rare Gardevoir EX or completing every XY expansion, Steam Siege offers a fantastic selection of collectible Pokémon cards.
Why Collect Steam Siege?
Steam Siege brought Volcanion and Magearna into the Pokémon TCG and features some of the most striking Gardevoir cards of the XY era, including a Secret Rare Gardevoir EX and Full Art Mega Gardevoir EX. Volcanion EX also became a popular competitive card.
Collectors regularly search for:
- Steam Siege Booster Box
- Steam Siege ETB
- Gardevoir EX Secret Rare
- Mega Gardevoir EX Full Art
- Volcanion EX Secret Rare
- Magearna EX
- Steam Siege Master Set
- PSA Graded Steam Siege Cards
Whether you're building a complete XY collection, collecting Gardevoir cards or investing in Mega Evolution Pokémon-EX, Steam Siege remains a worthwhile addition to any Pokémon TCG collection.