Holy Beasts
Every so often someone will be chosen to take in immense amounts of the hollow radiance, beyond what most mortal should be capable of. If the chosen survives they will twist and contort into something monstrous. Even blessings may have drawbacks, the Holy Beast needs very direct guidance/escorted by adequate members of the Asulon church to maintain a sense of self against the overwhelming amount of light.
Mortuusian Crystallization
The crystals within mines have special properties, giving mages and sorcerers trained in the arts the ability to capture souls within. This may lead to those exposed to the crystals to grow their own crystal clusters on their bodies. Mortussians, Draconians, and a few other sapient species are not as aggressively affected; however, species more in tune with nature such as treants and elementals will be effected significantly.
Side effects may include the soul being absorbed by the crystal clusters in the body, creating a husk of the body. This usually only happens in extreme cases to those who have been exposed their entire lives with no tolerance. Most cases end up with less. .. sanity.
Garghouls
Garghoulification is a type of infection caused by drinking the red water found within The Mokun Mountain Range, and can apply to both creatures and sapient species in order to create what is known as a "Garghoul". Infection does not appear to be possible for those incapable of consuming the water.
Infection may be stopped and cured within it's early stages with magical methods of healing over time, The Theocracy's healing being notably effective.
There is no known cure for late stages of infection
As the infection progresses stone-like growths will occur on the infected individual's body, gradually both replacing and mixing in the individuals flesh or flesh-equivalent. This is, notably, a slow and very painful process. As garghoulification progresses further the stone-like portions of the body will noticeably appear overall stronger and more durable, or in some incredibly rare cases sacrificing one of those traits and creating some twisted form of magical attunement. Exact specifics may vary from species to species, with abilities perhaps shaping some aspects of garghoulification within the infected individual's body.
Change in behavior is noted yet inconsistent in creatures, but all creatures and sapient species when mostly or fully affected have a notable increase in aggression against non-garghouls within The Mokun Mountain Range. This increased aggression may even cause Garghouls who were once fighting to instead work together. It is believed that Garghouls are incredibly protective of this region, even feeling a call towards disturbances in the region should destructive situations occur. It's theorized that these tendencies are not of their own will, but little to no evidence currently exists.
Danger ranking of infected *creatures* goes up by one rank.