Oko, Thief of Crowns #197 from Throne of Eldraine is a foil mythic card that currently sells for about $5.61 ungraded, with graded copies ranging from $56.00 at grade 9.5 to $31.00 at grade 10. A grade 10 copy sells for around $31.00, about 5.5× the $5.61 raw price, so high-grade copies are worth grading.