Zoroark #BW19 from BW Black Star Promos is a reverse holo promo card that currently sells for about $4.55 ungraded, with graded copies ranging from $11.84 at grade 7 to $355 at grade 10. A grade 10 copy sells for around $355, about 78× the $4.55 raw price, so high-grade copies are worth grading.