Japanese Cruel Traitor GX XY11 Booster BoxStep into Steam Siege with the Cruel Traitor Booster Box This official Japanese release launched in June 2016, featuring the XY11 "Cruel Traitor" miniexpansion tied to Pokemon Centers and select Japanese retailers. A sealed box offers access to rare full art and EX cards from the Steam Siege subset. Whats inside: 20 Japanese booster packs of XY11 Cruel Traitor (Steam Siege subset) Each pack contains 5 randomized cards (common through rare), including