Zoroark #BW09 from BW Black Star Promos is a reverse holo promo card that currently sells for about $3.69 ungraded, with graded copies ranging from $5.50 at grade 7 to $174 at grade 10. A grade 10 copy sells for around $174, about 47× the $3.69 raw price, so high-grade copies are worth grading.