Nintendo might have leaked the use of the Shovel Knight amiibo in Super Smash Bros. If you go to the Super Smash Bros amiibo page it shows all the amiibo which are set to be compatible with the game. Interestingly Shovel Knight is featured as a compatible amiibo. What should be noted is that this could be a simple mistake by Nintendo as it has happened previously with other amiibo. Guess we shall have to wait and see!