Revavroom ex #15 from Shrouded Fable is a holo rare card that currently sells for about $0.99 ungraded, with graded copies ranging from $7.02 at grade 9 to $31.50 at grade 10. A grade 10 copy sells for around $31.50, about 32× the $0.99 raw price, so high-grade copies are worth grading.