Kingdra-GX #18 from Dragon Majesty is a holo holo_rare card that currently sells for about $4.75 ungraded, with graded copies ranging from $15.50 at grade 7 to $79.00 at grade 10. A grade 10 copy sells for around $79.00, about 17× the $4.75 raw price, so high-grade copies are worth grading.