TCGrader's AI has graded 3 copies of Marshadow & Machamp-GX (Unbroken Bonds), averaging 8.6 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 $250, about 6.3× the $40.00 raw price, so high-grade copies are worth grading.