M Gallade-EX #100 from Roaring Skies is a rare card that currently sells for about $42.69 ungraded, with graded copies ranging from $63.50 at grade 7 to $848 at grade 10. TCGrader's AI has graded 5 copies of M Gallade-EX (Roaring Skies), averaging 8.9 overall. 40% scored 9 or higher, so a strong copy is achievable but far from guaranteed. A grade 10 copy sells for around $848, about 20× the $42.69 raw price, so high-grade copies are worth grading.