Burning-Rune Demon #81 from Kaldheim is a foil mythic card that currently sells for about $5.18 ungraded, with graded copies ranging from $7.15 at grade 7 to $41.00 at grade 10. A grade 10 copy sells for around $41.00, about 7.9× the $5.18 raw price, so high-grade copies are worth grading.