Diseases

Aside from regular diseases which do indeed exist in this world, there's a special category of diseases caused by Remnant buildup. These afflictions aren't always deadly, but will almost definitely incapacitate the sufferer to some degree, be this mentally or physically. Each of these diseases are caused by a different variation of the aforementioned buildup of Remnant, the only common thread tying them together being the symptoms entailed. This refers to their corrupting nature, slowly converting the user's body until they're unable to survive.

Forest Remnant Disease (FRD)
Forest Remnant disease is the most common, due to the Forest and it's inhabitants natural buildup. It is also the least painful, and is generally considered a normal, natural way of dying. Unlike most other diseases, which usually start from whichever limbs or appendages are used for magic, FRD generally begins from the chest, slowly spreading outwards. Physically, those afflicted will slowly have their body converted into living wood, eventually becoming one with nature once more. It also has positive side effects, causing numbing of pain, increasing overall serotonin production (or species equivalent), and instilling a general sense of calm and peace.

It isn't uncommon for people to intentionally contract this disease due to it's positive effects, and can be used as a method of humane euthanasia in medical settings via artificial insertion of remnant.

Smithing Remnant Disease (SRD)
Smithing Remnant Disease is most frequently found in metal industry workers or tinkerers.