Dewgong δ #15 from Dragon Frontiers is a reverse holo rare card that currently sells for about $2.28 ungraded, with graded copies ranging from $12.00 at grade 7 to $90.00 at grade 10. A grade 10 copy sells for around $90.00, about 40× the $2.28 raw price, so high-grade copies are worth grading.