Blastoise #31 from Boundaries Crossed is a reverse holo holo_rare card that currently sells for about $3.01 ungraded, with graded copies ranging from $11.99 at grade 7 to $1,000 at grade 10. A grade 10 copy sells for around $1,000, about 332× the $3.01 raw price, so high-grade copies are worth grading.