Blightsteel Colossus #357 from Double Masters is a full art / borderless mythic card that currently sells for about $36.00 ungraded, with graded copies ranging from $52.00 at grade 9 to $135 at grade 10. A grade 10 copy sells for around $135, about 3.8× the $36.00 raw price, so high-grade copies are worth grading.