Muk & Alolan Muk-GX #220 from Unbroken Bonds is a holo rare card that currently sells for about $27.64 ungraded, with graded copies ranging from $28.75 at grade 7 to $138 at grade 10. A grade 10 copy sells for around $138, about 5× the $27.64 raw price, so high-grade copies are worth grading.