Alolan Sandslash-GX #SM236 from SM Black Star Promos is a reverse holo promo card that currently sells for about $9.78 ungraded, with graded copies ranging from $50.00 at grade 9 to $90.00 at grade 10. A grade 10 copy sells for around $90.00, about 9.2× the $9.78 raw price, so high-grade copies are worth grading.