Serperior V #7 from Silver Tempest is a holo holo_rare card that currently sells for about $1.63 ungraded, with graded copies ranging from $12.00 at grade 9 to $21.99 at grade 10. A grade 10 copy sells for around $21.99, about 14× the $1.63 raw price, so high-grade copies are worth grading.