Steam Siege

Steam Siege is the eleventh set in the XY series of the Pokémon Trading Card Game, released on August 3, 2016. This set introduced 116 new cards, with a focus on dual-type Pokémon and the legendary Volcanion-EX. Featuring the return of the dual-type mechanic, powerful EX cards like Mega Steelix-EX, and the expanded BREAK Evolution mechanic, this set offered new strategic possibilities for collectors and competitive players alike.