This trait allows the vespire's pneumir to be augmented by any affinities that a vespire may have! It can also manifest as a unique "breath weapon" (think like dragons) such as breathing fire, or shooting a lightning bolt from their mouth!
Also called Split Eyes on the pouflons.com website! This affects ONLY the eyes and not the runic, one eye must still be their dominant runic color. The split runic trait will affect both runic locations and eyes.