Shivan the Hunter is one of the Heroes of the Horn. He is brother to Calian the Chooser; both of whom are only born at the end of an Age. It was suspected that Elayne Trakand was pregnant with Shivan and Calian, but The Wheel of Time Companion states in the entries for each that they were born before the beginning of the Last Battle and Elayne had not yet given birth.
He rides with a black mask.
Shivan the Hunter is a parallel to Shiva the Destroyer in Hindu Mythlogy. Shiva is known as "the destroyer" or "transformer." the name also translating roughly as "auspicious one." This reflects the words that Jordan uses to describe Shivan, the destruction of what had been and the birth of what was to be. Some stories describe Shiva appearing as a tribal hunter to challenge and test protagonists as in the case with Arjuna. Shiva, like some other Hindu gods, appears in incarnations called avatars in which a being descends from a higher plane to a lower one for a specific purpose. This is remarkably similar to how the Pattern incorporates the Heroes of the Horn into its weaving.