Team Aqua's Carvanha #20 from Double Crisis is a reverse holo common card that currently sells for about $1.43 ungraded, with graded copies ranging from $16.78 at grade 9 to $37.95 at grade 10. A grade 10 copy sells for around $37.95, about 27× the $1.43 raw price, so high-grade copies are worth grading.