Miraidon #13 from Scarlet & Violet Black Star Promos is a reverse holo promo card that currently sells for about $7.28 ungraded, with graded copies ranging from $10.99 at grade 7 to $99.00 at grade 10. A grade 10 copy sells for around $99.00, about 14× the $7.28 raw price, so high-grade copies are worth grading.