Darkness Energy #121 from HeartGold & SoulSilver is a common card that currently sells for about $44.95 ungraded, with graded copies ranging from $51.42 at grade 7 to $121 at grade 9.5. A grade 9.5 copy sells for around $121, about 2.7× the $44.95 raw price, so high-grade copies are worth grading.