Cozy Glow has been locked away in Tartarus as punishment for her crimes. There she meets her pen pal and new neighbor, Lord Tirek. She then proceeds to drive him completely nuts.
When three ponies go to the Almighty Author of Life to audition for the next villain roles, they find he has declared a new rule: All villains from now on must have sad backstories of being rejected and reformations.
Pinkie Pie and Cheese Sandwich are having a party off in order to decide just who is the best party pony in Equestria. A competition that Maud Pie chooses to join.
Discord is brought to Ponyville to be reformed. As a safety precaution, he is deprived of his magic before his release. Naturally, he is upset by this, but... No one thought that the powerless spirit of chaos would actually run away!
After sending Twilight to Ponyville, Princess Celestia demands letters from her but when Twilight starts to complain, Celestia becomes unhappy and replies to her letters in her own way.
Death is the end of everything. Unless you're Pinkie Pie. In which case, Death will do anything to keep you from dying, so he doesn't have to deal with you. Ever.