Dark Slowbro #12 from Team Rocket is a holo holo_rare card that currently sells for about $42.62 ungraded, with graded copies ranging from $61.62 at grade 7 to $4,000 at grade 10. A grade 10 copy sells for around $4,000, about 94× the $42.62 raw price, so high-grade copies are worth grading.