Groudon-EX #54 from Dark Explorers is a reverse holo holo_rare card that currently sells for about $32.64 ungraded, with graded copies ranging from $24.00 at grade 7 to $420 at grade 10. A grade 10 copy sells for around $420, about 13× the $32.64 raw price, so high-grade copies are worth grading.