Chansey #187 from Twilight Masquerade is a illustration_rare card that currently sells for about $44.43 ungraded, with graded copies ranging from $35.00 at grade 7 to $250 at grade 10. TCGrader's AI has graded 10 copies of Chansey (Twilight Masquerade), averaging 8.8 overall. 70% scored 9 or higher, so clean copies are common and centering usually decides the top grades. A grade 10 copy sells for around $250, about 5.6× the $44.43 raw price, so high-grade copies are worth grading.