Gliscor #DP36 from DP Black Star Promos is a reverse holo promo card that currently sells for about $3.50 ungraded, with graded copies ranging from $13.52 at grade 7 to $116 at grade 10. A grade 10 copy sells for around $116, about 33× the $3.50 raw price, so high-grade copies are worth grading.