Powerful Colorless Energy #176 from Darkness Ablaze is a reverse holo uncommon card that currently sells for about $1.49 ungraded, with graded copies ranging from $6.51 at grade 9 to $18.00 at grade 10. A grade 10 copy sells for around $18.00, about 12× the $1.49 raw price, so high-grade copies are worth grading.