Chansey #187 from Twilight Masquerade is a holo illustration_rare card that currently sells for about $52.71 ungraded, with graded copies ranging from $40.00 at grade 7 to $280 at grade 10. TCGrader's AI has graded 5 copies of Chansey (Twilight Masquerade), averaging 8.8 overall. 60% scored 9 or higher, so clean copies are common and centering usually decides the top grades. A grade 10 copy sells for around $280, about 5.3× the $52.71 raw price, so high-grade copies are worth grading.