Looking at Mimikyu's ability, it sounds like it's going to be utterly gamebreaking at minimum. First attack does jack sh*t? That sounds like a great excuse to get a substitute up and set up all kinds of shenanigans.
The horse looks like a decent physical wall, so Gamefreak's probably going to give it negative special bulk or terrible stats in everything else.
The Crab looks like Magikarp V3. Seriously, a Pokemon designed to be a complete Wimp?