Asag, Ninurta's opponent from the mountains
By Ralf Ittermann · last reviewed on
Asag is a demon of the Mesopotamian tradition.
The chaos demon from the mountains, whom Ninurta slays.
Asag, Akkadian Asakku, is a Mesopotamian disease and chaos demon. On one level, he is a severe fever illness; on the other, he is the mythical monster that the god Ninurta slays in the epic Lugal-e.
Unlike many figures in this series, Asag is not a desert demon: all specialist sources tie him to the mountains, the Zagros. From there, in the epic, he leads an army of stones against the cities, until Ninurta confronts him and creates the irrigation order of the Tigris from the defeated stones.
Type: Disease and chaos demon, Akkadian Asakku
Origin: Sumerian-Akkadian tradition
Texts: Epic Lugal-e, incantation series Asakku marsutu
Period: Ur III to Hellenistic period
Appearance: fatherless warrior with an army of stones
Sources and dating
Period of the Texts
As a word, Asag is attested from the Ur III period into the Hellenistic era; the epic Lugal-e was recorded in writing during the Old Babylonian period.
Area of Diffusion
Mesopotamia, with a clear connection to the mountains: the specialist sources locate Asag in the Zagros, not in the desert.
Sources
Well documented: the Lugal-e in van Dijk’s edition, Jacobsen’s translation and the handbooks of Assyriology.
Name and variants
Sumerian: a-sag, Akkadian Asakku, related to the word azag, taboo or untouchable. Both levels of the being, the disease and the monster, appear under the same name.
Form and manner of combat
Appearance
In the Lugal-e, Asag is a fatherless warrior, begotten by heaven and earth, a murderer from the mountains, whom the plants have chosen as king. His warriors are stones such as diorite and haematite, which raid the cities.
Effect
On the level of disease, Asag is personified fever with headache. On the level of myth, he embodies chaos and disorder and threatens both the cosmic and the economic order of water and agriculture.
Profile: Asag
The key aspects of the chaos demon at a glance.
Sumerian-Akkadian dual figure: a fever illness of the incantation texts and the monster of the Lugal-e, attested from Ur III into the Hellenistic period.
The cities and the order: Asag’s army of stones descends from the mountains upon the cultivated land, threatening water management and agriculture.
A fatherless warrior, begotten by heaven and earth, chosen king by the plants; his army consists of stones such as diorite and hematite.
Illness and chaos: as Asakku, a personified fever with headache; in myth, the threat to the cosmic order.
Exorcist priests and the canonical series Asakku marsutu with invocation of Ea and Marduk and substitution rites; in myth, the mace Sharur is victorious.
Anzu, who steals the Tablet of Destinies, and the dragon monster Labbu; the opponent of all three is Ninurta.
The Lugal-e: Ninurta against the demon of the mountains
The epic Lugal-e, recorded in writing in the Old Babylonian period, tells of the battle: Asag, the fatherless warrior from the mountains, marches with his army of stones against the cities. Ninurta’s talking mace Sharur warns her lord, father Enlil gives counsel, and finally Ninurta slays the demon.
What follows is noteworthy: Ninurta passes judgement on the stones that had sided with Asag, orders them, and creates from them the irrigation system of the Tigris. The battle against chaos does not end in destruction but in a reordering of the world; the defeated chaos becomes the foundation of agriculture.
Legacy and classification
Asag lives on chiefly in Assyriology and in the reception of the Lugal-e; a broad popular afterlife did not follow.
In religious studies, Asag is a demon of illness and chaos. Important clarifications: he is not a desert demon but bound to the mountains, the specialist sources place him in the Zagros. The image that fish boil in his presence is a paraphrase, not a literal line of verse. And he does not appear in Ninurta’s trophy lists but is the god’s main adversary.
Incantation against the Asakku
Against the disease aspect of Asag, the exorcist priest helped with the canonical series Asakku marsutu, the malevolent Asakku demons: it invokes Ea and Marduk and works with substitution rites that transfer the evil onto a substitute. On the mythic level, the defence instead rests with the hero god himself; there the talking mace Sharur triumphs with Enlil’s support.
Anzu, Labbu and the battle against chaos
Asag belongs among the great adversaries of the Mesopotamian battle against chaos. Related figures are Anzu, who steals the Tablet of Destinies and is likewise slain by Ninurta, and the dragon monster Labbu. Ninurta is the oldest protagonist of the chaos battle; his mythology was later transferred to Marduk. On the illness side, he is joined by the night demon Alu from the same body of incantation lore.
Frequently asked questions about Asag
What is Asag?
A Mesopotamian demon of illness and chaos, adversary of the god Ninurta. He is at once a severe fever illness and the monster of the epic Lugal-e.
Is Asag a desert demon?
No, he is bound to the mountains; the specialist sources place him in the Zagros. The desert association is a common misconception.
Who defeats Asag?
The god Ninurta with his talking mace Sharur. After the victory he orders the stones and creates from them the irrigation system of the Tigris.
Further links
Further reading:
- Mesopotamia – all beings of the land between the two rivers
- Ninurta – the god who slays Asag
- Anzu, Alu – related figures of the Mesopotamian system
- Amulet, Holy Water, Iron – traditional protective means
- Protection Compass – protective means at a glance
Literature (selection)
Further standard works in the bibliography.
As the Mesopotamian chaos demon of the Lugal-e and as the Asakku of the incantation series, Asag brings together both faces of the danger: the mythic monster from the mountains and the fever that afflicts the individual.





