Mega Venusaur ex #155 from Mega Evolution is a ultra_rare card that currently sells for about $12.00 ungraded, with graded copies ranging from $13.00 at grade 7 to $68.25 at grade 10. TCGrader's AI has graded 3 copies of Mega Venusaur ex (Mega Evolution), averaging 8.3 overall. A grade 10 copy sells for around $68.25, about 5.7× the $12.00 raw price, so high-grade copies are worth grading.