Bone Devil
Large fiend · CR 9 · 5,000 XP
16 AC · 161 HP
Roll the Bone Devil
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Stat block
- Type
- Large fiend, lawful evil
- Armor Class
- 16
- Hit Points
- 161 (17d10 + 68)
- Speed
- 40 ft., fly 40 ft.
- Challenge
- 9 (5,000 XP), proficiency +4
- Resistances
- cold
- Immunities
- fire, poison
- Condition immunities
- Poisoned
- Senses
- darkvision 120 ft. (unimpeded by magical darkness), passive perception 12
- Languages
- Infernal; telepathy 120 ft.
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 18 | 16 | 18 | 13 | 14 | 16 |
Bone Devil odds against your Armor Class
Chance to hit, then average damage per attack once misses and critical hits are counted.
| Attack | AC 12 | AC 14 | AC 15 | AC 16 | AC 18 | AC 20 |
|---|---|---|---|---|---|---|
| Claw (+8) | 85% 11.5 dmg | 75% 10.2 dmg | 70% 9.5 dmg | 65% 8.9 dmg | 55% 7.6 dmg | 45% 6.3 dmg |
| Infernal Sting (+8) | 85% 29.5 dmg | 75% 26.2 dmg | 70% 24.5 dmg | 65% 22.9 dmg | 55% 19.6 dmg | 45% 16.3 dmg |
| Full turn (3 attacks) | 52.5 dmg | 46.6 dmg | 43.6 dmg | 40.7 dmg | 34.8 dmg | 28.9 dmg |
Bone Devil hit points
The stat block uses the average, 161. Rolled, 17d10 + 68 lands anywhere from 85 to 238.
| Hit points | Chance |
|---|---|
| 123 or more | >99% |
| 162 or more | 50% |
| 200 or more | <1% |
| 223 or more | <1% |
Traits
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 () Slashing damage.
Infernal Sting. Melee Attack Roll: +8, reach 10 ft. Hit: 15 () Piercing damage plus 18 () 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 CR 9 monsters
Clay Golem 
Cloud Giant 
Fire Giant 
Glabrezu 
Treant 
Young Blue Dragon 
Young Silver Dragon
This page includes material from the System Reference Document 5.2.1 (“SRD 5.2.1”) by Wizards of the Coast LLC, available at dndbeyond.com/srd. The SRD 5.2.1 is licensed under the Creative Commons Attribution 4.0 International License. The averages, odds and tables are ours.