Asag

In the Sumerian mythological poem Lugal-e, Asag or Azag (Sumerian:𒀉𒉺 a₂-sag₃ Akkadian: asakku^[1]), is a monstrous demon, so hideous that his presence alone makes fish boil alive in the rivers. Azag is a personification of winter cold and sicknesses.^[2]

This demon lives either in the Abyss^[which?] or in the mountains and is accompanied by an army of rock demon offspring—born of his union with the mountains themselves.^[2]

He was vanquished by the heroic Akkadian deity Ninurta, using Sharur, his enchanted talking mace, after seeking the counsel of his father, the god Enlil.^[3]

Asakku

The name Asakku is used by researchers as either a synonym of Azag^[4] or a "variation" in the form of multiple spirits and monsters that prey on humans and kill them by causing migraines.^[5]