M Blastoise-EX #30 from XY is a reverse holo holo_rare card that currently sells for about $8.38 ungraded, with graded copies ranging from $23.74 at grade 8 to $85.00 at grade 10. A grade 10 copy sells for around $85.00, about 10× the $8.38 raw price, so high-grade copies are worth grading.