Gardevoir-EX #116 from Steam Siege is a rare card that currently sells for about $72.76 ungraded, with graded copies ranging from $92.69 at grade 7 to $1,724 at grade 10. TCGrader's AI has graded 5 copies of Gardevoir-EX (Steam Siege), averaging 8.5 overall. 40% scored 9 or higher, so a strong copy is achievable but far from guaranteed. A grade 10 copy sells for around $1,724, about 24× the $72.76 raw price, so high-grade copies are worth grading.