Arceus LV.X #DP56 from DP Black Star Promos is a reverse holo promo card that currently sells for about $20.81 ungraded, with graded copies ranging from $41.93 at grade 7 to $1,925 at grade 10. A grade 10 copy sells for around $1,925, about 93× the $20.81 raw price, so high-grade copies are worth grading.