Stakataka #SM180 from SM Black Star Promos is a reverse holo promo card that currently sells for about $7.99 ungraded, with graded copies ranging from $9.77 at grade 9 to $53.02 at grade 10. A grade 10 copy sells for around $53.02, about 6.6× the $7.99 raw price, so high-grade copies are worth grading.