Team Aqua's Sharpedo #21 from Double Crisis is a reverse holo holo_rare card that currently sells for about $3.84 ungraded, with graded copies ranging from $29.95 at grade 7 to $50.27 at grade 10. A grade 10 copy sells for around $50.27, about 13× the $3.84 raw price, so high-grade copies are worth grading.