Yaun Ti

Yuan-ti are a collective race of psionic serpentfolk, who are seen as corrupt and degenerate monsters by other races. The appearance of yuan-ti vary greatly from nearly human-like to nearly snake-like, but all have some serpentine features. Scale colors are usually simple greens and browns, but more elaborate swirls, stripes, or diamond patterns are possible, even in blues and reds.
Yuan-ti gives off almost no scent that a human could detect, but animals can sense a dry, musty odor from their bodies.
Only the most human-like forms wear clothing, but all varieties wield weapons if they had means to carry them.
The yuan-ti come in several distinct castes or breeds. The three most prevalent are as follows:
Purebloods Purebloods appear mostly human, with minor reptilian features, such as slit eyes, a forked tongue, or patches of scales on their skin.
Halfbloods Also call malisons, halfbloods are humanoid in shape but have a wide variety of noticeable serpentine features, such as a snakelike tail in place of legs, a complete covering of scales, a hood like a cobra, a snake's head, or snakes in place of arms.
Abominations Abominations are almost completely snakelike, with only a few human features, such as arms or a humanoid head.
In general, the more serpentine features a yuan-ti possesses the higher its status in yuan-ti society. Abominations are at the top of their society, followed by halfblood, and finally purebloods. Within their subraces, yuan-ti are ranked by achievements and the demonstrated favor of Sseth.
Yuan-ti culture centers around their temples, which often are found in ancient ruins or hidden deep underneath human cities. The locations of these are well-guarded secrets.
Outside their temples, they usually only appear in small groups of less than five.
Yuan-ti find the body odor of humans repulsive, so much so that in areas controlled by yuan-ti, humans wear perfume to conceal their body odor.
The abominations rule over the other breeds of yuan-ti, leading from the temples.
Purebloods, being the most human-like, are the caste involved in negotiations with outside races.
The yuan-ti are devout demon-worshipers. Their worship often involve bloody sacrifices. Most worshiped Sseth, with other serpentine deities that some have worshiped over the years either being masks worn by Sseth or a false deity of the Scaleless Ones. All yuan-ti must act in accordance with the Sacred Way of Sseth - that is, subtly. Whenever possible, yuan-ti choose manipulation over open confrontation, the whisper over the fang. Followers of the Sacred Way of Sseth know their foes, think ahead, and plan forward.
The goal of the Yuan-ti, as dictated by their demonic god Merrshaulk (also known as Sseth), is to bring about the ultimate destruction of the world.