Mawile-GX #141 from Unified Minds is a holo holo_rare card that currently sells for about $2.77 ungraded, with graded copies ranging from $14.51 at grade 9 to $26.00 at grade 10. A grade 10 copy sells for around $26.00, about 9.4× the $2.77 raw price, so high-grade copies are worth grading.