Emerald Fist Nurgle Sorcerer Fluff

Here's some background on how my librarians turned from the Emperor and a bit of a bio of my sorcerer which will get painted next month.

The Schism of the Fists was not limited to line astartes. Neither Lexicani nor codicier, fused with the tainted geneseed, were immune to those blighted events. Although they may have held out longer than their comrades, secluding themselves to rigorous meditation to ward off the pressing tide, the young librarians inevitably ceded to Roscius as their battle brothers died around them. Once removed from the shackles of the Librarius’ edicts designed to protect those wielding the powers of the warp, the traitors were free to delve into the rotting wonder of the Lord of Decay. Most of these new sorcerers had not yet steeled their minds to such power and perished or worse, devolved into gibbering masses of flesh spawn. Few, such as Morteus, harnessed this power to their will. With but a look Morteus infects his victims and wracks their flesh. Sharing his gifts with all those he sets his gaze upon has become his only impetus. Those who earn his attention are rewarded with a death experienced throughout a lifetime in a state between worlds; neither in the material world or the immaterium, his victims suffer for an eternity at the blink of an eye before crumbling to dust at his feet. Large swaths of the population of Bruj were inevitably cursed to the undying by his own hand.