Devil, Nephirron

Family: Devils

Huge fiend (devil), lawful evil

Armor Class 19 (natural armor)
Hit Points 225 (18d12 + 108)
Speed 40 ft., fly 80 ft.

27 (+8) 14 (+2) 23 (+6) 22 (+6) 19 (+4) 25 (+7)

Saving Throws Dex +7, Con +11, Wis +9
Skills Arcana +11, Deception +12, Insight +9, Intimidation +12, Perception +9, Persuasion +12
Damage Resistances acid, cold; bludgeoning, piercing, and slashing from nonmagical attacks not made with silvered weapons
Damage Immunities fire, poison
Condition Immunities frightened, poisoned
Senses truesight 90 ft., passive Perception 19
Languages Draconic, Infernal, telepathy 120 ft.
Challenge 16 (15,000 XP)

Special Traits


  • Multiattack. The nephirron devil makes one bite attack and two claw attacks.
  • Bite. Melee Weapon Attack: +13 to hit, reach 10 ft., one target. Hit: 26 (4d8 + 8) piercing damage. If the target is a creature, it must succeed on a DC 19 Constitution saving throw or fall unconscious for 1 minute, or until it takes damage or someone uses an action to shake or slap it awake. Dragons and dragon-like creatures, such as dragonborn, have disadvantage on this saving throw.
  • Claw. Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 15 (2d6 + 8) slashing damage.


  • Sculpt Breath (Recharge 6). When the nephirron is in the area of a spell, such as fireball, or a breath weapon, it can create a hole in the spell or breath weapon, protecting itself from the effects. If it does so, the nephirron automatically succeeds on its saving throw against the spell or breath weapon and takes no damage if it would normally take half damage on a successful save.


This devilish monster has a draconic body covered in thick, greenish-gold scales and the head of a handsome giant with gleaming red eyes. It opens its mouth in a sardonic smile, and the head of a serpent appears between its lips, hissing with malevolent, mirthful relish.

Devilish Infiltrators. Nephirron devils are powerful fiends with draconic features that are adept at corrupting good-aligned dragons and bending evil dragons to their will. The older and more powerful the dragon, the bigger the challenge in the eyes of the nephirron devil. When two of these devils meet, they typically boast about the number and types of dragons they have manipulated and destroyed. This pride can also be a nephirron devil’s undoing, however, for it often overlooks humanoids attempting to interfere with its plans, and more than one nephirron devil has been brought low by a band of mortal heroes.

Hellish Nobles. Nephirron devils are treated as lesser nobility in the hells, second only to pit fiends and arch-devils in the infernal pecking order. A nephirron devil is often served by ghost dragons, remnants of good and evil dragons the nephirron devil corrupted and inevitably consumed.

Section 15: Copyright Notice

Tome of Beasts 2. © 2020 Open Design LLC; Authors Wolfgang Baur, Celeste Conowitch, Darrin Drader, James Introcaso, Philip Larwood, Jeff Lee, Kelly Pawlik, Brian Suskind, Mike Welham.

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