Zasa Mergen Baatar, in Buryat mythology, is the tornado-god riding a brown hawk-horse. Han Hormasta`s eldest son Zasa Mergen Baatar married Sesegen Nogoon the daughter of Segeen Sebdeg. He obtained her as his bride by successfully wrestling (and thereby transforming into the three Sharaidai khan-s) the three sons of Atai Ulaan : Sagaan Hasar Buhe....