Mime Jr. #DP22 from DP Black Star Promos is a reverse holo promo card that currently sells for about $5.82 ungraded, with graded copies ranging from $9.99 at grade 7 to $150 at grade 10. A grade 10 copy sells for around $150, about 26× the $5.82 raw price, so high-grade copies are worth grading.