Bone Devil

Monster Manual (2025) p. 52

Size
Large
Type
fiend (devil)
Alignment
lawful evil
AC
16
Initiative
7
Hit Points
161 (17d10+68)
Speed
walk 40 ft., fly 40 ft.
Saving Throws
Str +8, Wis +6, Cha +7, Int +5
Skills
Insight +6, Deception +7
Resistances
cold
Immunities
fire, poison
Condition Immunities
poisoned
Senses
darkvision 120 ft. (unimpeded by magical darkness)
Passive Perception
12
Languages
Infernal; telepathy 120 ft.
Challenge
9
Environment
planar (nine hells)
STR
18
+4
DEX
16
+3
CON
18
+4
INT
13
+1
WIS
14
+2
CHA
16
+3

Traits

Proficiency Bonus

+4

Treasure

Implements: The monster's treasure hoard features magic items with the noted theme. The Dungeon Master's Guide details treasure hoards appropriate for each theme.

Diabolical Restoration

If the devil dies outside the Nine Hells, its body disappears in sulfurous smoke, and it gains a new body instantly, reviving with all its Hit Points somewhere in the Nine Hells.

Magic Resistance

The devil has Advantage on saving throws against spells and other magical effects.

Actions

Multiattack

The devil makes two Claw attacks and one Infernal Sting attack.

Claw

Melee Attack Roll: +8, reach 10 ft. Hit: 13 (2d8 + 4) Slashing damage.

Infernal Sting

Melee Attack Roll: +8, reach 10 ft. Hit: 15 (2d10 + 4) Piercing damage plus 18 (4d8) Poison damage, and the target has the Poisoned condition until the start of the devil's next turn. While Poisoned, the target can't regain Hit Points.

Other data

description

Bone devils are gaunt, nightmarish Fiends with pallid skin stretched tight over frames that combine human and insectile features. Also known as osyluths, these Fiends command weaker devils and other beings aligned with infernal legions. Bone devils ensure that the commands of hellish sovereigns are exacted efficiently and that non-devils fulfill their commitments to the Nine Hells. They slay those who renege on infernal deals, sending treacherous mortal souls to face unspeakable punishments. When not serving their diabolical masters, bone devils tempt self-obsessed mortals with promises of other creatures' adulation and obedience. These devils prop up petty tyrants, helping them grow increasingly calloused and amoral. Bone devils travel across the multiverse to fulfill diabolical orders. If left with no other choices, they might conscript mortals to aid them in their vicious goals. Roll on or choose a result from the Bone Devil Objectives table to inspire a bone devil's goals.

Bone Devil Objectives:

1d4The Bone Devil Seeks To...
1Capture a soul that escaped the Nine Hells.
2Convey a message or make an example of someone in the name of an archdevil.
3Find someone who broke a deal with a devil.
4Slay someone or steal something as part of its pact with a wicked magic-user.