Muldrotha, the Gravetide #199 from Dominaria is a foil mythic card that currently sells for about $2.70 ungraded, with graded copies ranging from $12.29 at grade 7 to $105 at grade 9.5. A grade 9.5 copy sells for around $105, about 39× the $2.70 raw price, so high-grade copies are worth grading.