Chudo-Yudo (or Chudo-Iudo, ; pl. "Chuda-Yuda") is a multi-headed dragon, appearing in some wondertale variants. The Chudo-Iudo is considered to be water-dwelling. Some legends portray him as the brother of Koshchey the Deathless, and thus the offspring of the witch Baba Yaga; others present him as a personification of the witch in her foulest form. Chudo Yudo is one of the guardians of the Water of Life and Death, and his name traditionally was invoked in times of drought. He can apparently assume human-like forms - this being is able to ride a horse. He has the ability to regenerate any decapitated heads.