Team Aqua's Walrein #5 from Double Crisis is a reverse holo holo_rare card that currently sells for about $2.82 ungraded, with graded copies ranging from $10.91 at grade 7 to $44.61 at grade 10. A grade 10 copy sells for around $44.61, about 16× the $2.82 raw price, so high-grade copies are worth grading.