Double Colorless Energy #103 from HeartGold & SoulSilver is a reverse holo uncommon card that currently sells for about $4.89 ungraded, with graded copies ranging from $7.00 at grade 7 to $50.00 at grade 10. A grade 10 copy sells for around $50.00, about 10× the $4.89 raw price, so high-grade copies are worth grading.