Almost everyone knows about Multiverse Theory. This theory states that there are basically infinite universes with infinite possibilities. In one universe Twilight become the element of magic itself. In another universe Twilight became an alicorn. Tasked with protecting the tree of harmony itself. In another universe Twilight became none of these things. Instead the purple mare simply lived out here life among family and friends.

However in another universe Twilight Sparkle became something she was never meant to be.

A monster.