Wash Rotom #SM94 from SM Black Star Promos is a reverse holo promo card that currently sells for about $5.28 ungraded, with graded copies ranging from $29.99 at grade 9 to $59.99 at grade 10. A grade 10 copy sells for around $59.99, about 11× the $5.28 raw price, so high-grade copies are worth grading.