SHADE

The Harbinger of War, the Beast of Destruction, The Pallor Omen- SHADE is a beast that bears many titles and many names, but one thing is consistent: seeing a sign of her almost always means your destruction is sealed. She isn't necessarily evil, just a divine force of re-adjustment when things sway off the track one way or the other.
Although she represents herself as a lich, her form is not one of undeath- but one of efficiency. Why bother having flesh and organs when you can skip the details and be even more terrifying?