Swamp #282 from Theros Beyond Death is a common card that currently sells for about $2.99 ungraded, with graded copies ranging from $19.95 at grade 9 to $22.00 at grade 9.5. A grade 9.5 copy sells for around $22.00, about 7.4× the $2.99 raw price, so high-grade copies are worth grading.