Steam Siege Booster Box

Sealed 36-pack English Booster Box from Steam Siege, the eleventh XY expansion themed around Steel-type Pokémon. Mega Steelix-EX and Volcanion-EX are headline chases.

Type

Booster Box

Era

XY

Released

August 3, 2016

Age

9 years, 10 months

Franchise

Pokémon