A series involving the MLP villains reimagined or in the EqG world.
Series 1: A trilogy involving Discord coming into the human world and having fun because technically, he's not bound by Celestia's rules of being peaceful since he's not in Equestria.
Series 2: The Crystal Maiden: Another Trilogy involving Chrysalis, who after magic seeps into the human world takes the appearance of a changeling and has their powers.
Series 3: Out of Time/Tempus Fugit: Ayy I'm gonna take a stab at Starlight in EqG as she uncovers Starswirl's time machine schematics, all three episodes have a time travel theme, one involves Sunset's past/alternate universes, another the Witch trials, and a time jumping finale where we find out just how much baggage Starlight has.