Pazuzu is known as a demon prince of the abyss and has also been revered by kenkus of old as a god. Others though blame him for the loss of the kenkus' ability to fly as a punishment for getting them to betray the Raven Queen.
He is also known for betraying his former masters in the Abyss to the Ta'anari. He often offers help to mortals in peril, especially if they're pure hearted. This of course leads them down the path of corruption.