The player must have spoken to the "Huntmaster" in Phon Coast and defeated Thalassinon to start of the Rare Game quest. Arioch then has a 40% chance of appearing in the southeastern-most corner of the Slumbermead area.
[view·edit·purge]Arioch is a Hebrew name that means "fierce lion." It originally appears in the Book of Genesis chapter 14 as the name of the "King of Ellasar." The name was later adapted as a fictional demon, and also appears as the name of a demon in many grimoires. Arioch is named in John Milton's Paradise Lost (vi. 371.) as one of the fallen angels under Satan's command.