Machamp #H15 from Skyridge is a holo holo_rare card that currently sells for about $219 ungraded, with graded copies ranging from $353 at grade 7 to $6,600 at grade 10. TCGrader's AI has graded 5 copies of Machamp (Skyridge), averaging 6.3 overall. A grade 10 copy sells for around $6,600, about 30× the $219 raw price, so high-grade copies are worth grading.