Mewtwo-GX #SV59 from Hidden Fates Shiny Vault is a reverse holo shiny card that currently sells for about $79.99 ungraded, with graded copies ranging from $47.00 at grade 7 to $240 at grade 10. A grade 10 copy sells for around $240, about 3× the $79.99 raw price, so high-grade copies are worth grading.