Ho-Oh-GX #SM80 from SM Black Star Promos is a reverse holo promo card that currently sells for about $17.42 ungraded, with graded copies ranging from $20.53 at grade 7 to $230 at grade 10. A grade 10 copy sells for around $230, about 13× the $17.42 raw price, so high-grade copies are worth grading.