M Gengar-EX #121 from Phantom Forces is a rare card that currently sells for about $247 ungraded, with graded copies ranging from $381 at grade 7 to $5,900 at grade 10. TCGrader's AI has graded 8 copies of M Gengar-EX (Phantom Forces), averaging 7.5 overall. A grade 10 copy sells for around $5,900, about 24× the $247 raw price, so high-grade copies are worth grading.