Rot

Rot, also known as Augurial Rot, is a condition that results from incorrect use or acquisition of augur that usually leads to death or removal of augur.
== Overview ==
Usually stemming from a mage attempting to implement or use a magic incompatible with their skill level or body, Rot occurs shortly after. There is no common ways to cure it, with the exception of utilizing Draining type augur to remove it from the body or letting it pass, which always results in the user being incapable of using augur afterwards if they survive. If a lite or immortal being gains Rot, instead of "dying", their body will become corrupted as they are incapable of regenerating their form properly, gaining a more animalistic, inhuman form and behavior. Because Rot is more likely to occur from venerable magics, such types are considered dangerous to the average mage and are therefore banned depending on the nation and their level of mages. 
The symptoms of Rot in a non-lite body include loss of bodily or muscular function, significant atrophy of the muscles, growth of painful, rough skin and cysts, and inability to use magic, and if a wizard attempts to use magic, they will experience great pangs of pain to the point of vomiting. If not recovered naturally, death usually occurs soon after.