The Ars Goetia is the first section of the Lesser Key of Solomon, containing descriptions of seventy

The Ars Goetia is the first section of the Lesser Key of Solomon, containing descriptions of seventy-two demons.
These are an eclectic bunch made up of demons/pre abrahamic faith deities in demon form.
Shax is a Duke/High Marquis of Hell and the commander of 30 legions. Shax appears as a stork with a harsh voice. Quite deceitful even dangerous to an unskilled sorcerer, if not confined properly he will lie and not obey commands.
However if properly invoked he will steal whatever is requested by his commander, be it money, horses, sight, hearing even understanding. He also will speak truth on supernatural matters and reveal hidden treasures.