Feraligatr #20 from HeartGold & SoulSilver is a reverse holo rare card that currently sells for about $4.15 ungraded, with graded copies ranging from $18.91 at grade 7 to $472 at grade 10. A grade 10 copy sells for around $472, about 114× the $4.15 raw price, so high-grade copies are worth grading.