Vaporeon ex #149 from Prismatic Evolutions is a holo illustration_rare card that currently sells for about $229 ungraded, with graded copies ranging from $205 at grade 7 to $990 at grade 10. TCGrader's AI has graded 21 copies of Vaporeon ex (Prismatic Evolutions), averaging 8.8 overall. 62% scored 9 or higher, so clean copies are common and centering usually decides the top grades. A grade 10 copy sells for around $990, about 4.3× the $229 raw price, so high-grade copies are worth grading.