XY - Steam Siege Ultra Rare (STS) carries a total slabbed market cap of $2.4M. TCGBerg tracks a fair value for 45 card and grade combinations in the set. M Gardevoir EX #112 · PSA 10 anchors the set at 29.7% of its total cap.
Historical context
Released in 2016 as a EN release.
Market overview
Cap is concentrated: the largest card-grade position is 29.7% and the top 5 make up 69.4% of set cap. The set's cap-weighted fair-value confidence is high (68/100). It has seen 127 graded sales over the trailing 30 days.












































