Basic Metal Energy #99 from Shrouded Fable is a hyper_rare card that currently sells for about $30.44 ungraded, with graded copies ranging from $22.24 at grade 9 to $49.99 at grade 10. A grade 10 copy sells for around $49.99 vs $30.44 raw. That's a modest premium, so grading only pays off for near-perfect copies.