Chansey #187 from Twilight Masquerade is a holo illustration_rare card that currently sells for about $53.05 ungraded, with graded copies ranging from $27.50 at grade 7 to $314 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 $314, about 5.9× the $53.05 raw price, so high-grade copies are worth grading.