Vaporeon V #SWSH181 from SWSH Black Star Promos is a reverse holo promo card that currently sells for about $76.50 ungraded, with graded copies ranging from $52.69 at grade 7 to $1,525 at grade 10. A grade 10 copy sells for around $1,525, about 20× the $76.50 raw price, so high-grade copies are worth grading.