Yuan-ti

Yuan-ti are snake-like humanoids. They can be found in most planes of existence along the path of Veritas. The notable exception is Frit, as it is too cold. 
On the Veritian Leaf, the Yuan-ti are foreigners from a sister leaf, travelling over with the ancient green dragon Sistern during the Dragon Blight. They settled the Glade region in the Southern Farmlands, turning the area into a desert in the process. They are not much liked, seen as invaders, but they have built a moderately prosperous state on the new continent they are trapped on.