Discord is bored out of his skull with being good. So he's going to try being evil again! But how can he do it without getting caught? By shapeshifting into a changeling so he can shapeshift into a disguise of course! What a brilliant plan!

Pinkie Pie challenges her friends to play a game in which they take turns being evil, with the rest of the players tasked to thwart the evil schemes. The stakes are high, and all of Ponyville is caught in the middle...