Pokémon TCG: XY—Steam Siege (Japanese: 爆熱の闘士Fever-Burst Fighter and 冷酷の反逆者Cruel Traitor) is the name given to the fourth main expansion of cards from the XY BREAK Series of the Pokémon Trading Card Game. It is the fourth and final main expansion from the XY BREAK Era of the Pokémon Card Game in Japan. The set continues to feature Generation VI Pokémon, Pokémon-EX, M Pokémon-EX, and Pokémon BREAK in the card game.
Long years of stability come to an end when Shiny Mega Gardevoir-EX lays siege to the mighty Gear Palace with a host of greedy forces. The Mythical Steam Pokémon Volcanion must wield the dual powers of fire and water to stop them! As the battle rages, Xerneas BREAK and Yveltal BREAK face off in the Pokémon TCG: XY—Steam Siege expansion!
Fever-Burst Fighter • Cruel Traitor logos
Steam Siege is the name given to the fourth main expansion of the XY BREAK Series of the Pokémon Trading Card Game. In Japan, it was released as the Fever-Burst Fighter and Cruel Traitor dual expansions that make up the fourth and final expansion in the Pokémon Card Game XY BREAK Era. It is based on Pokémon X and Y, featuring Generation VI Pokémon and the Steam Pokémon Volcanion. The English expansion was released on August 3, 2016, while the Japanese expansions were released on June 17, 2016.
Steam Siege featured dual-type Pokémon, in which Pokémon have a secondary type. The Pokémon in the artwork is in its Shiny form. A diagonal line strike across the card from the top-right to the bottom-left corner, with each side having the Pokémon's different type color.
The Fever-Burst Fighter and Cruel Traitor sets are released in Japanese and Korean. The Japanese sets are available in both 1st and unlimited edition, and the Korean sets are only available in unlimited edition. The Steam Siege set is released in English, German, French, Italian, Spanish, and Portuguese. Cards in the English, German, French, Italian, and Spanish sets were also available as Reverse Holos. The Portuguese version of this set lacked any Reverse Holos.