Mew-EX #RC24 from Legendary Treasures is a holo rare card that currently sells for about $119 ungraded, with graded copies ranging from $248 at grade 7 to $38,100 at grade 10. TCGrader's AI has graded 6 copies of Mew-EX (Legendary Treasures), averaging 8 overall. A grade 10 copy sells for around $38,100, about 321× the $119 raw price, so high-grade copies are worth grading.