Question: What demon from Assyrian and Babylonian mythology is battled by Father Damien Karras in "The Exorcist" film series? 
Sentence (from "Pazuzu (The Exorcist)"): Blatty derived the character from Assyrian and Babylonian mythology, where Pazuzu was considered the king of the demons of the wind, and the son of the god Hanbi.
Relevant evidence: Yes