Gengar #11 from Legendary Collection is a holo holo_rare card that currently sells for about $141 ungraded, with graded copies ranging from $421 at grade 7 to $336,000 at grade 10. TCGrader's AI has graded 13 copies of Gengar (Legendary Collection), averaging 6.8 overall. A grade 10 copy sells for around $336,000, about 2383× the $141 raw price, so high-grade copies are worth grading.