I have no idea what's going on with ??? - the speculation is rife that it's something to do with the new Switch game, but if nothing else, it's created a ton of buzz (just, what for???) It's all kinds of weird that it's not a recognised Pokemon of any kind.

Dragons are so rare outside events, aren't they? I think that was my last type medal to go gold, and there was a brief period early in the game where a park fairly need me was a Dratini nest...