Gyarados #40 from Rebel Clash is a reverse holo holo_rare card that currently sells for about $1.82 ungraded, with graded copies ranging from $10.00 at grade 7 to $40.00 at grade 10. A grade 10 copy sells for around $40.00, about 22× the $1.82 raw price, so high-grade copies are worth grading.