Donphan #SWSH067 from SWSH Black Star Promos is a reverse holo promo card that currently sells for about $6.45 ungraded, with graded copies ranging from $14.50 at grade 9 to $50.26 at grade 10. A grade 10 copy sells for around $50.26, about 7.8× the $6.45 raw price, so high-grade copies are worth grading.