Gastly #177 from Temporal Forces is a holo illustration_rare card that currently sells for about $92.24 ungraded, with graded copies ranging from $63.00 at grade 7 to $580 at grade 10. TCGrader's AI has graded 6 copies of Gastly (Temporal Forces), averaging 8.8 overall. 67% scored 9 or higher, so clean copies are common and centering usually decides the top grades. A grade 10 copy sells for around $580, about 6.3× the $92.24 raw price, so high-grade copies are worth grading.