On Dead Wings:

When Ubelyta cleaved the goddess of Balance from the world
And Ellewyn’s silver blood spilled out onto the land
The concept of balance itself spread across the Drikthan soil
Over time, necromancers became something greater
The entire nation’s population grew hair of whitish-silver
And a couple thousand of them became something more
An avatar of balance itself, sharing a small fraction of Ellewyn’s power
They fought both the Heavens and Hell to Perigor’s frustration
So he ordered these Harvesters purged
Thus the Angels of Death, as they would be called, died
Those who would’ve saved Mirythia from Destruction two hundred years later