Gengar #5 from Fossil is a 1st edition holo holo_rare card that currently sells for about $360 ungraded, with graded copies ranging from $907 at grade 7 to $100,000 at grade 10. TCGrader's AI has graded 6 copies of Gengar (Fossil), averaging 7.4 overall. A grade 10 copy sells for around $100,000, about 278× the $360 raw price, so high-grade copies are worth grading.