Ridley, Inkling, and Wolf will be joining the rest of the Super Smash Bros. series amiibo when they launch on December 7, the same day as Super Smash Bros. Ultimate, for USD $15.99.
In addition, the Nintendo Versus Twitter account also confirmed that, “many” of the original Super Smash Bros. amiibo will be seeing re-releases “later this year and will be $12.99.”
Source: IGN.com Release Date For Ridley, Inkling, and Wolf Amiibo Announced