Gengar & Mimikyu-GX #164 from Team Up is a rare card that currently sells for about $202 ungraded, with graded copies ranging from $61.37 at grade 7 to $67.95 at grade 10. TCGrader's AI has graded 4 copies of Gengar & Mimikyu-GX (Team Up), averaging 7.9 overall. A grade 10 copy sells for around $67.95 vs $202 raw. That's a modest premium, so grading only pays off for near-perfect copies.