Zoroastrianism

Zoroastrianism
Zoroastrianism is one of the few fiercely monotheistic religions, believing that Ahura Mazda is the one true god, the Illuminating Wisdom. All other gods are merely seen as great powers, but to worship them as gods is blasphemy. The Sassanid Persians and Khivan Turkic peoples regularly embark on crusades to try and purge the lesser religions, and regularly get into conflict with the Sunni and Tengri adherents. They have an uneasy truce and on/off alliance with the Zunbil country to the south east, Baluchistan, due to their usefulness as mercenaries when fighting the Brahmans from the Far East.

Zoroastrianism only has one god, Ahura Mazda, and His prophet Zoroaster.