Naganadel & Guzzlord-GX #223 from Cosmic Eclipse is a rare card that currently sells for about $18.99 ungraded, with graded copies ranging from $34.00 at grade 9 to $83.00 at grade 10. A grade 10 copy sells for around $83.00, about 4.4× the $18.99 raw price, so high-grade copies are worth grading.