Cobalion-EX #93 from Plasma Storm is a holo holo_rare card that currently sells for about $7.60 ungraded, with graded copies ranging from $9.93 at grade 7 to $71.67 at grade 10. A grade 10 copy sells for around $71.67, about 9.4× the $7.60 raw price, so high-grade copies are worth grading.