Mephiles's Castle

Mephiles is an Anthro Nightmare Alicorn he is the Reincarnation of Mephiles the Dark from a timeline that he no longer exists in and he was reborn as an Anthro Nightmare Alicorn and he is one of many of Sovereign's children and his mother is an Anthro Nightmare Alicorn named Nightmare Moon and Mephiles is over 9 million years old and he is still evil just no longer the desire to erase timelines now he is a necessary evil just like his father, sovereign as a dark protector and Mephiles was able to create his own reality 30 times larger than the Omniverse it's not as massive as Sovereign's Megaverse but the Crystalverse is Mephiles's design full of Nightmarish like people and animals of countless different species both beautiful and scary at the same time and his home is the Nightmare Castle