Serperior ex #164 from Black Bolt is a holo illustration_rare card that currently sells for about $43.47 ungraded, with graded copies ranging from $25.00 at grade 7 to $91.00 at grade 10. A grade 10 copy sells for around $91.00, about 2.1× the $43.47 raw price, so high-grade copies are worth grading.