Overlord of the Hauntwoods #383 from Duskmourn: House of Horror is a extended art foil mythic card that currently sells for about $189 ungraded, with graded copies ranging from $70.00 at grade 9 to $77.00 at grade 9.5. A grade 9.5 copy sells for around $77.00 vs $189 raw. That's a modest premium, so grading only pays off for near-perfect copies.