Basically a collection of short stories about magical artifacts and magical phenomons and how they were used/came to be. (Or even sometimes just stories about them.) With small additions by Twilight Sparkle.
Expect multiple war stopping artifacts, mind control staffs, OP amulets, and even gender changing stones to appear.
This is gonna be a crazy ride.
(Gore for certain chapters containing more violence than the show. Most of it will be fantasy violence. There will probably never be extremely graphic detail. Probably.)