Tarmogoyf #187 from Ultimate Masters is a foil mythic card that currently sells for about $6.92 ungraded, with graded copies ranging from $27.00 at grade 9 to $67.66 at grade 10. A grade 10 copy sells for around $67.66, about 9.8× the $6.92 raw price, so high-grade copies are worth grading.