Ghalta and Mavren #307 from March of the Machine is a showcase rare card that currently sells for about $4.47 ungraded, with graded copies ranging from $18.00 at grade 9 to $20.00 at grade 9.5. A grade 9.5 copy sells for around $20.00, about 4.5× the $4.47 raw price, so high-grade copies are worth grading.