The most powerful sorcerer in history rescues a young Princess from her own curiosity, and helps her found a new Empire. But the sorcerer has her own reasons for doing so -- and they're not nice reasons...
In canon, Sacanas is only mentioned in passing as the creator of the Staff of Sacanas, used by Tempest Shadow in her attempt to conquer Equestria. Yet what kind of sorcerer would fashion a staff designed to steal the magic of alicorns? Why was Tempest, while wielding the Staff and its power, so implacably, coldly vicious? And why does history seem to say so little about such a powerful mage? There's a backstory here, and this is my take on it...
One final note: I do not agree with or defend the opinions expressed here. My intent is merely to explore the question: can a pony somehow end up doing all the right things, for all the wrong reasons?