Marshadow-GX #80 from Burning Shadows is a holo holo_rare card that currently sells for about $2.95 ungraded, with graded copies ranging from $17.71 at grade 7 to $44.95 at grade 10. A grade 10 copy sells for around $44.95, about 15× the $2.95 raw price, so high-grade copies are worth grading.