Arven's Mabosstiff ex #218 from Destined Rivals is a ultra_rare card that currently sells for about $2.34 ungraded, with graded copies ranging from $10.50 at grade 7 to $30.00 at grade 10. A grade 10 copy sells for around $30.00, about 13× the $2.34 raw price, so high-grade copies are worth grading.