Yamper #99 from Phantasmal Flames is a holo illustration_rare card that currently sells for about $3.03 ungraded, with graded copies ranging from $9.70 at grade 7 to $62.00 at grade 10. A grade 10 copy sells for around $62.00, about 21× the $3.03 raw price, so high-grade copies are worth grading.