Afflictions
Note: Some of this information is not entirely canon, we had to fill in many blanks to make it work in game.
These are things that can permanently change a character's appearance, ability, life, and personality. None of these can be combined, nor can someone be "half" of any of these afflictions. Hyuri only affects living things, so vampires would be unaffected. The magic and spirit resistance of were-wolves wouldn't allow for a Hyuri possession. There cannot be vampire/were-wolf combinations because one must be alive to be afflicted with lycanthropy and the virus that causes it would be nullified by vampirism. There is no way Hyuri could be passed genetically because it is a spiritual affliction. Vampires cannot reproduce sexually to create half-vampires, nor can half-vampires be created by other means explored in other stories. Lycanthropy has a 50/50 chance of being passed from mother to child, but the affliction would be complete for the child.
Hyuri Possession
Hyuri is the shamanist spirit of anger and a very powerful one that that. They are rarely summoned by shamans, but roam the world freely. Usually a Hyuri possesses a person in their greatest moment of need (This is a very rare occurrence, so don't think that every time someone needs protection or is incredibly angry a Hyuri can possess them.). As an example, the character Orson was possessed by a Hyuri spirit as a young boy after he watched his sister be slaughtered by goblins. The spirit found him and entered him, and with the power it gave him, he slew the goblins. Hyuri can also be inflicted by shamans, but this is a dangerous and cruel summon, so with the exception of strange situations, this would not be done defensively or offensively, even by dark elves. Once someone is possessed of a Hyuri, there is no known way to break the possession, not even the high elves know a way. A person can learn to control it, however.
The person afflicted with Hyuri becomes a berserker. Usually something must trigger this, in Orson's case, it was seeing a woman in danger that set it off. In the beginning, a berserker will have little to no control of this possession, and when they come the slightest bit upset, they will lose all control and kill indiscriminately. A berserker loses nearly all their senses and all they know is to kill, the Hyuri triggers a massive release of adrenaline. They become stronger because they can no longer feel pain, they do not notice wounds, even the most grisly, and will continue fighting until they regain control of themselves or run out of things to kill, in some cases, they may die while berserk once their body can take no more punishment.
Most berserkers learn how to shut down their emotions to avoid losing control. The life of a berserker is often empty and lonely because of their cold nature and...the tendency to kill with out discrimination when Hyuri takes them over. It's said when a berserker comes, they leave nothing but death behind them.
Vampirism
This is a curse of undeath, but instead of leaving the victim as a mindless ghoul, they retain their intelligence and become powerful, immortal beings. Being the anti-thesis of all things living and holy, they are hated by elves and clerics. Humans fear them and since the time of Kastuul, have been exterminating them, leaving a very small population.
Vampires are predators, feeding on the blood of the living. They cannot reproduce sexually, but can create other vampires. To become a vampire, one must partake of a vampire's blood and die, after which, they will be reborn as a new vampire. This is rarely done, usually a vampire will only feed on a human and dispose of the body. Becoming a vampire completely changes a person's body, all their body functions cease and they must sustain themselves on the blood of other creatures. Some vampires try to retain their humanity by only feeding on creatures. They are inherently evil and follow the dark gods; a newly turned vampire might fight this change as long as possible, but in the end, they will eventually succumb to evil.
Vampires are vulnerable to a few things. They are mainly nocturnal and have an aversion to sunlight. To much sunlight can kill a vampire, however, with every millennia a vampire exists, he or she gains more resistance to sunlight. Within five thousand years a vampire becomes resistant to the effects of sunlight that affect younger vampires. There are many superstitions regarding vampires and how to kill them. A stake in the heart works, but anything in the heart works just as well. Enchanted Holy weapons do serious damage to a vampire and things that are holy will deter a vampire. Powerful Holy magic can effectively smite a vampire. Though the quickest way to kill a vampire is beheading. Garlic in a person's bloodstream will deter any bloodsucker.
Vampires have enhanced senses; hearing, sight, smell and taste are far above human norms. Their agility and speed improves greatly to surpass even elves. They gain the power of hypnosis to charm their victims. With age and experience, vampires gain more powers such as: ability to drain life force and strength and resistance to sunlight (both starting at 1000 years and slowly increasing with age). Vampires appear as they did upon their rebirth as a vampire, though with time their skin grows paler. Though undead, they often retain a youthful appearance and even gain beauty.
Lycanthropy
This is the curse of the were-wolf. Those afflicted can shift forms into a large, almost human wolf-like creature. Lycanthropy affects a person similar to how Vampirism does, however one does not have to die to become a were-wolf. It is a virus that can be passed blood to blood, altering the genetic structure of it's victim. Usually, this happens when a person is bitten by a wounded were-wolf, granted they can survive a were-wolf mauling.
Were-wolves are not evil creatures, but in their wolf form, they often become violent and blood thirsty—unless they've developed control over it. They appear as normal people, but often become loners, seeking to distance themselves from those they might do harm. Someone spiritually inclined may be able to detect a were-wolf if they know what they're looking for.
Were-wolves shift forms with the lunar cycle, until they learn to control it. On nights with a full moon, they shift to wolf form and loose their sense of humanity, becoming ravenous, blood thirsty creatures. One can learn to control this shape-shifting, but it could take many years to master, and many lives may be lost in the mean time. Once trained, a were-wolf can learn to shift at will, or partially shift to gain claws, fangs or appear as an anthropomorphic wolf. Sometimes, even young were-wolves can shift forms to protect themselves when they are in serious danger.
