Greninja ex #214 from Twilight Masquerade is a illustration_rare card that currently sells for about $237 ungraded, with graded copies ranging from $201 at grade 7 to $270 at grade 10. TCGrader's AI has graded 15 copies of Greninja ex (Twilight Masquerade), averaging 8.5 overall. 67% scored 9 or higher, so clean copies are common and centering usually decides the top grades. A grade 10 copy sells for around $270 vs $237 raw. That's a modest premium, so grading only pays off for near-perfect copies.