Omnath, Locus of Creation #312 from Zendikar Rising is a showcase foil mythic card that currently sells for about $5.02 ungraded, with graded copies ranging from $7.50 at grade 7 to $62.00 at grade 10. A grade 10 copy sells for around $62.00, about 12× the $5.02 raw price, so high-grade copies are worth grading.