Re-formed as a pony, mostly, Stalwart Bastion grows up as Twilight's reclusive son. But as we all know, the life of Twilight and everypony near her is seldom normal to begin with.

Note: continuing without regard to Twilicorn, although personally I have no problem with her existence.

We all get bored sometimes, even Sauron. Steve, a Canadian brony, is summoned to a Battle Royale with other characters from other places, starting with two from Skyrim and two from Ponyville. But that is just the beginning, as Sauron learns just how fun ponies can be...