Belphegor D&D 5e custom monster stat block by Fern Flower Press - Large fiend for infernal invention encounters.

Belphegor

Arch-Demon of Sloth and infernal engineer of corrupting invention.
Type: Demon Habitat: Infernal workshops and catacomb depths Region: Hell and Paris catacombs

Lore

In demonology the upper hellish hierarchy is founded not only on the power or antiquity of evil but also on how much a given vice furthers the decay of the human soul; Belphegor, one of the seven grand princes of the Pit, holds a special place in that structure, for he personifies sloth while at the same time serving as an “infernal engineer,” supervising technological progress meant to drag the individual toward degradation. His name, Belphegor, is the Greek form of the Hebrew Baal-Peor, meaning “Lord of Mount Peor” or “Master of the Cleft.” The Moabites worshiped him as a tutelary god on Mount Peor northeast of the Dead Sea.

In demonology Belphegor was banished for criminal inaction during the heavenly rebellion: he joined neither Lucifer nor the heavenly host, choosing apathetic neutrality, and once in the Abyss he elevated idleness to an absolute, becoming the Arch-Demon of Sloth. In modern times he has settled into the role of the demon of discoveries and inventions responsible for the technological decay of society.

Outwardly Belphegor displays an anatomical dualism. In his seductive anthropomorphic form he most often appears as a beautiful naked young woman, the nudity symbolizing the revelation of secrets rather than eroticism; notable are goat ears, short white hair, a pair of vertically growing green-yellow horns, and a long black rat’s tail. His true, “wrathful” form is a massive monster with a dark scaly or leathery hide, a long tangled beard merging into chest fur, a pair of ram’s horns, a perpetually gaping mouth, sharp iron claws, and an aura of stale, heavy air that spreads apathy to everyone nearby.

As the demon of sloth, Belphegor is sedentary and territorial, seldom leaving his own infernal domain unless a mission requires him to appear on Earth. In Hell he rules vast workshops of “lazy complexity,” where countless lesser demons design mechanisms that allow humans to avoid labor. On Earth Belphegor has a particular bond with France, especially Paris: deep within the lower tiers of the Parisian catacombs he serves as Hell’s ambassador. In natural surroundings he acts like an ambush predator, waiting until prey wanders into the snare of convenience or idle curiosity. His intellect is off the charts, focused on engineering and science; he is a misanthropic philosopher convinced that humanity is incapable of creation or technological breakthrough without demonic stimulus. Among the other princes he is considered the laziest and the least aggressive.

Stat block

Belphegor

Large fiend (demon), chaotic evil

Armor Class 20
Initiative +1
Hit Points 337 (25d12 + 175)
Speed 40 ft., fly 40 ft.

MOD
SAVE
str
22
+6
+13
int
26
+8
+15
MOD
SAVE
dex
12
+1
+1
wis
20
+5
+12
MOD
SAVE
con
24
+7
+14
cha
24
+7
+14

Saving Throws Str +13, Con +14, Int +15, Wis +12, Cha +14
Skills Arcana +15, Deception +14, Investigation +15, Persuasion +14
Damage Resistances cold; fire; lightning; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities poison
Condition Immunities charmed, exhaustion, frightened, poisoned
Senses truesight 120 ft., passive Perception 15
Languages all, telepathy 120 ft.
CR 21 (33,000 XP) Proficiency Bonus: +7
Find this creature’s full lore and stat block in the book