Mega Gardevoir ex #178 from Mega Evolution is a holo illustration_rare card that currently sells for about $157 ungraded, with graded copies ranging from $140 at grade 7 to $305 at grade 10. TCGrader's AI has graded 7 copies of Mega Gardevoir ex (Mega Evolution), averaging 8.5 overall. Only 14% scored 9 or higher, so genuinely mint copies of this card are scarce. A grade 10 copy sells for around $305 vs $157 raw. That's a modest premium, so grading only pays off for near-perfect copies.