TCGrader's AI has graded 3 copies of Teal Mask Ogerpon ex (Prismatic Evolutions), 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 $66.00, about 8.6× the $7.70 raw price, so high-grade copies are worth grading.