Hearthflame Mask Ogerpon ex #17 from Prismatic Evolutions is a holo rare card that currently sells for about $1.25 ungraded, with graded copies ranging from $9.75 at grade 9 to $40.00 at grade 10. A grade 10 copy sells for around $40.00, about 32× the $1.25 raw price, so high-grade copies are worth grading.