Houndoom V #21 from Darkness Ablaze is a reverse holo holo_rare card that currently sells for about $2.10 ungraded, with graded copies ranging from $9.00 at grade 7 to $24.99 at grade 10. A grade 10 copy sells for around $24.99, about 12× the $2.10 raw price, so high-grade copies are worth grading.