Squirtle #48 from Scarlet & Violet Black Star Promos is a reverse holo promo card that currently sells for about $2.49 ungraded, with graded copies ranging from $10.00 at grade 7 to $200 at grade 10. A grade 10 copy sells for around $200, about 80× the $2.49 raw price, so high-grade copies are worth grading.