Hydrapple #188 from Destined Rivals is a illustration_rare card that currently sells for about $4.67 ungraded, with graded copies ranging from $9.99 at grade 7 to $36.00 at grade 10. A grade 10 copy sells for around $36.00, about 7.7× the $4.67 raw price, so high-grade copies are worth grading.