Osyluth (Bone Devil)

Osyluth Creature9

LE Large Devil Fiend

Senses Perception +21; greater darkvision

Languages Celestial, Draconic, Infernal; telepathy 100 feet

Skills Arcana +18, Deception +19, Intimidation +21, Religion +17, Stealth +20

Str +5, Dex +5, Con +4, Int +3, Wis +4, Cha +4

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AC 28; Fort +17, Ref +18, Will +17; +1 status to all saves vs. magic

HP 135; Immunities fire; Weaknesses good 10; Resistances physical 10 (except silver), poison 10

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Speed 35 feet, fly 30 feet

Melee [one-action] jaws +21 (evil, magical), Damage 2d10+11 piercing plus 1d6 evil

Melee [one-action] claw +21 (agile, evil, magical, reach 10 feet), Damage 2d6+11 slashing plus 1d6 evil

Melee [one-action] stinger +21 (evil, magical, reach 15 feet), Damage 1d10+11 piercing plus 1d6 evil and osyluth venom

Ranged [one-action] bone shard +21 (evil, magical, range increment 30 feet), Damage 2d6+8 piercing

Divine Innate Spells DC 25; 5th dimension door, phantom pain; 4th dimension door (at will), dimensional anchor (-2), discern lies, zone of truth; 2nd invisibility (at will; self only)

Rituals DC 25; infernal pact

Osyluth Venom (poison) Saving Throw DC 25 Fortitude; Maximum Duration 6 rounds; Stage 1 2d6 poison damage, enfeebled 1 (1 round); Stage 2 3d6 poison damage and enfeebled 1 (1 round); Stage 3 3d6 poison damage and enfeebled 2 (1 round). Once a creature reaches stage 3, it takes a -4 status penalty to Will saves against attempts to Coerce it for 1 hour (this is a mental effect). Quick Invisibility The osyluth can cast innate invisibility using only 1 action. Sadistic Strike An osyluth deals an extra 2d6 damage whenever they Strike an enfeebled, frightened, or prone creature.

Stygian Inquisitor [one-action] (linguistic, mental) The osyluth telepathically questions a creature affected by zone of truth. After 1 round, if the creature intentionally refuses to answer the question, it takes 2d6 mental damage.

Tail Sweep [one-action] The osyluth sweeps their tail in a 15-foot cone. Each creature in the cone must succeed at a DC 26 Reflex save or be knocked prone.

An osyluth is an unparalleled inquisitor that revels in the sadism and torture for which Hell is so well known. These devils’ charge is to seek out heresies, both among mortals and among other fiends-a commandment they uphold with unwavering fervor. They spawn within the Styx-fed swamps of Hell’s fifth layer, Stygia; where heresies and the souls of heretics stagnate, osyluths eventually rise. In the remote corners of that same layer of Hell, they build massive, calcified hives where they perform their vile interrogations and perfect their torturous arts upon lesser devils and petitioners alike.

Hellmouths

While travel to and from Hell is possible with plane shift, another way to reach and traverse the infernal realms is via hellmouths, strange living portals connecting different layers or even different planes. A hellmouth takes the form of a grimacing face, distended maw, or other distressingly organic aperture, and no two share the same appearance. Most are carefully guarded, but some new or well-hidden hellmouths have yet to be discovered.