Blastoise V #SWSH101 from SWSH Black Star Promos is a reverse holo promo card that currently sells for about $6.63 ungraded, with graded copies ranging from $17.50 at grade 9 to $24.99 at grade 10. A grade 10 copy sells for around $24.99, about 3.8× the $6.63 raw price, so high-grade copies are worth grading.