Hydreigon #86 from Steam Siege is a reverse holo holo_rare card that currently sells for about $0.50 ungraded, with graded copies ranging from $2.81 at grade 7 to $79.99 at grade 10. A grade 10 copy sells for around $79.99, about 160× the $0.50 raw price, so high-grade copies are worth grading.