Descent of the Dragons #133 from Dragons of Tarkir is a foil mythic card that currently sells for about $6.20 ungraded, with graded copies ranging from $10.66 at grade 7 to $36.00 at grade 10. A grade 10 copy sells for around $36.00, about 5.8× the $6.20 raw price, so high-grade copies are worth grading.