Mega Venusaur ex #177 from Mega Evolution is a illustration_rare card that currently sells for about $150 ungraded, with graded copies ranging from $90.00 at grade 7 to $280 at grade 10. TCGrader's AI has graded 10 copies of Mega Venusaur ex (Mega Evolution), averaging 8.3 overall. 30% scored 9 or higher, so a strong copy is achievable but far from guaranteed. A grade 10 copy sells for around $280 vs $150 raw. That's a modest premium, so grading only pays off for near-perfect copies.