Greninja ex #198 from Twilight Masquerade is a holo ultra_rare card that currently sells for about $13.95 ungraded, with graded copies ranging from $19.53 at grade 7 to $139 at grade 10. TCGrader's AI has graded 4 copies of Greninja ex (Twilight Masquerade), averaging 8.9 overall. 75% scored 9 or higher, so clean copies are common and centering usually decides the top grades. A grade 10 copy sells for around $139, about 9.9× the $13.95 raw price, so high-grade copies are worth grading.