Balachko, serbian folklore triplehead giant

Balachko is 3-headed giant from Serbian tales.
From one head he could spit fire, from second one he could breathe cold wind. When he depleted his magical weapons, he was easy to kill. He was under the rule of Mihailo the king of Leđane. He was killed by the serbian hero Miloš Vojinović when he tried to kidnap princess Roksanda, the bride of Tsar Dušan.
This tale was told in the serbian epic poem "Tsar Dušan's wedding" (Женидба Душанова).
(from fandom of slavic creatures)