Iron Valiant ex #157 from Prismatic Evolutions is a holo illustration_rare card that currently sells for about $45.00 ungraded, with graded copies ranging from $31.74 at grade 7 to $178 at grade 10. A grade 10 copy sells for around $178, about 3.9× the $45.00 raw price, so high-grade copies are worth grading.