As a whole, the Afflicted can shift, changing between their afflicted form and their normal one. This isn’t always true, as some are stuck in one form or the other, and some can’t control their changing at all. This can lead to problems, deadly ones where one can end up on the end of a blade or exiled from the city entirely. Or it can lead to exaltation and worship fully depending on how exactly you become afflicted. The afflicted, as a whole, have gained their condition by use of the crystals, either by being exposed to them, using them for magic, mining them, or anything in between.
Each of them have some sort of power among them, so be cautious when approaching no matter which they are.