Bone devil we're working on, getting stuff ready for descent into

Here's the wiki of all posts in the series. Meeting the Osyluth - Level 9 The osyluth, or bone devil, is a sadistic fiend that likes to indulge in torturous interrogations. According to the flavor text, its typical assignment is to "seek out heresies.". The interrogators and inquisitors of devilkind, bone devils delight in torturing those weaker than themselves—mortals, souls, and other devils alike. Born of ancient heresies mired amid the Styx-fed swamps of Stygia, Hell's fifth layer, bone devils—also known as osyluths—enforce infernal order and the will of the archdevils.

The save DC is Constitution-based. Forged from the souls of the first heretics and blasphemers, mythic devils have an ancient legacy of torture and using secrets to lure mortal diabolists into temptation. A mythic bone devil leads Hell's inquisitors in the efforts to root out disobedience among other devils.. The interrogators and inquisitors of devilkind, bone devils delight in torturing those weaker than themselves—mortals, souls, and other devils alike. Born of ancient heresies mired amid the Styx-fed swamps of Stygia, Hell's fifth layer, bone devils—also known as osyluths—enforce infernal order and the will of the archdevils.