Leafeon-GX #SM146 from SM Black Star Promos is a reverse holo promo card that currently sells for about $5.25 ungraded, with graded copies ranging from $9.99 at grade 7 to $84.95 at grade 10. A grade 10 copy sells for around $84.95, about 16× the $5.25 raw price, so high-grade copies are worth grading.