I had to do a double take but it’s legit
Nintendo has always made it clear that prospective Pokken Tournament buyers would only get the Shadow Mewtwo card if they bought the game physically, but it’s going the extra mile with a new promotion. Provided that you have signed up for the Nintendo Store, anyone who bought the game digitally can now send in a support ticket to try to get a physical copy of the card. You just need your Nintendo Network ID and the serial number. Note that this offer is only available in the US, Canada, and Mexico.
I checked this and it is definitely real. There’s no way Nintendo would subject their entire support center workforce to this trickery. If it did though it would be one hell of an April Fools’ joke — though nothing will likely top Google’s mic drop fiasco.
Shadow Mewtwo amiibo Card Offer for Pokkén Tournament [Nintendo]