Ninjask #137 from Mega Evolution is a reverse holo illustration_rare card that currently sells for about $4.15 ungraded, with graded copies ranging from $9.50 at grade 7 to $26.00 at grade 10. A grade 10 copy sells for around $26.00, about 6.3× the $4.15 raw price, so high-grade copies are worth grading.