Beelzebub
Beelzebub — The Encounter
Lord of the Flies, first-fallen monarch of the buzzing Abyss · a boss your table can run with almost no prep. SRD 5.1-compatible.
Who Is Beelzebub
Among the first three angels to strike the Abyss and wake in ruin, Beelzebub rose beside Lucifer and Samael as a founding monarch of Hell, and the scars the archangels left upon him he wears yet as a crown of antler and flame. Where his rivals took dominion over war and pride, Beelzebub claimed the swarm: he is the Lord of the Flies, sovereign of decay, and every rot and pestilence that creeps across the lower planes answers the drone of his wings. Petitioners who beg his favor learn that his counsel is sweet and his price is corruption, for he prefers to win by patience, letting an enemy sicken and crumble before a blow is ever struck. His court buzzes without cease, and those who stand long in his presence find their lungs full of wings. To name him is to be heard; to bargain with him is to already be losing.
Run Beelzebub in Sixty Seconds
- Cloud first: the fly aura is always on — anyone who hugs Beelzebub eats 2d6 poison every turn AND attacks him at disadvantage, so melee parties are punished just for engaging.
- Open with insect plague dropped on the back line; it walls off the casters and chips them every round while he handles the front with Multiattack.
- Kill-priority is your own healer and concentration-caster — he Swarmsteps (bonus action, no opportunity attacks) straight to them and lashes for poison.
- When bloodied, he stops trading blows: dissolve into flies, reposition behind the plague, and bleed them with legendary Spreading Pestilence into any cluster.
- Three ways to run him: patient corruptor (poison and walls, never melees willingly), terror-vision at low tier (scaled numbers, can't truly die), or full Tier-3 boss with Sythrael bodyguarding and two lesser devils as adds.
Beelzebub
Large fiend (devil), lawful evil
CR 13 · 10,000 XP · GUIDELINECloud of Flies. A droning swarm boils around Beelzebub. At the start of each of his turns, every creature within 10 feet of him takes 7 (2d6) poison damage. While the cloud persists, attack rolls against Beelzebub by creatures within 10 feet are made with disadvantage as the flies blind and harry them.
Magic Resistance. Beelzebub has advantage on saving throws against spells and other magical effects.
Innate Spellcasting. His spellcasting ability is Charisma (spell save DC 16). He can innately cast the following spells, requiring no material components: at will command, insect plague; 3/day each fear, stinking cloud; 1/day insect plague upcast (already listed at will, treat extra casts as 1/day each contagion).
Actions
Multiattack. Beelzebub makes three attacks: one with his Flaming Scepter and two with his Stinging Lash.
Flaming Scepter. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 16 (3d6+5) bludgeoning damage plus 10 (3d6) fire damage.
Stinging Lash. Melee Weapon Attack: +9 to hit, reach 15 ft., one target. Hit: 12 (2d6+5) piercing damage, and the target must succeed on a DC 16 Constitution saving throw or be poisoned until the end of its next turn.
Bonus Actions & Reactions
Swarmstep (Bonus Action). Beelzebub dissolves into a column of flies and reforms in an unoccupied space he can see within 30 feet. This movement does not provoke opportunity attacks.
Buzzing Recoil (Reaction). When a creature within 10 feet hits Beelzebub with a melee attack, the cloud of flies lashes back: the attacker takes 9 (2d8) poison damage.
Legendary Actions (3/Round)
Detect. Beelzebub makes a Wisdom (Perception) check.
Lash. Beelzebub makes one Stinging Lash attack.
Spreading Pestilence (Costs 2 Actions). Beelzebub points his scepter at a point he can see within 60 feet. Each creature within 10 feet of that point must succeed on a DC 16 Constitution saving throw or take 14 (4d6) poison damage and be poisoned until the end of its next turn.
A gaunt, antlered monarch crowned in fire, robed in tattered carapace, his torso unfurling into great cicada-veined wings while his lower body coils away into a writhing knot of serpents and maggots set upon a base of Abyssal flame.
Beelzebub, Bound
Companion · acts on your initiative
Bound · GUIDELINEHive Sense (signature). Beelzebub shares the senses of every fly within 60 feet and cannot be surprised. While within 30 feet of Beelzebub, both have advantage on Wisdom (Perception) checks.
Actions
Barbed Proboscis. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 14 (3d6+4) piercing damage plus 7 (2d6) poison damage.
Reactions
Drone Ward. When an ally within 5 feet is hit by an attack, Beelzebub interposes its wing-shield, reducing the damage by 9 (2d8).
A man-sized horror of fused chitin and humming wings, chained to its master's will, that throws itself between Beelzebub and any blade.
Guideline numbers — formula-tuned and read from the miniature's design, not yet table-proven. Tell us how it ran in the comments.
How It Fights — by Tier
Same creature, scaled threat. The traits never change; only the numbers move.
Open with Cloud of Flies softening the front line, then Swarmstep to the squishiest target and lash it. Kill-priority: drop whoever is concentrating or healing. Far too lethal raw at this tier, so run him as a scaled-down nightmare or a dream-vision, not a fair fight.
Lead with insect plague to wall off the casters, then Multiattack the nearest melee. Use Swarmstep to stay off the front and let the poison tick. Pair him with a couple of lesser devils so the party can't simply gang the boss.
Open with Cloud of Flies up and insect plague centered on the casters, then Multiattack and Swarmstep to never be flanked. Spend legendary actions on Spreading Pestilence into clusters; when bloodied, retreat into the flies and force them to come to you through the poison. Kill-priority: anyone with mass-cure or fire vulnerability.
Put Beelzebub on the table
Download the presupported STL and run the fight tonight — the model, and the encounter that comes with it.
Get the STL on MyMiniFactory →Clay Cyanide Companion Rules v1
How a bound creature acts
- A companion acts on its owner's initiative, immediately after the owner.
- It uses the Companion block above — roughly ×0.6 HP and damage, no recharge abilities, and at most one reaction trait.
- It moves freely; it takes its Action only while its owner is conscious.
- At 0 HP a companion is broken, not dead — restored on a long rest unless your table rules otherwise.
Original Clay Cyanide material © Clay Cyanide LLC — explicitly not the non-SRD official sidekick rules.
Questions, Asked at the Table
What CR is Beelzebub?
Natively CR 13 (Tier 3, ~level 11-15), built as a solo boss with legendary actions. The tiers block also gives scaled CR 2 (level 1-4) and CR 6 (level 5-10) versions; the traits and actions stay identical, only AC, HP, to-hit, save DC, and damage shift to the band.
Can Beelzebub be a companion or ally?
Not directly — he is a Goetic monarch and a boss-tier adversary, not an ally. If players strike an Abyssal bargain, give them Sythrael, the Bound Drone (his attendant horror) as a temporary summoned ally instead, using the companion block.
How do I keep the fly aura from grinding the table to a halt?
Roll the Cloud of Flies poison once for all creatures in range at the start of his turn and apply it together, and remind melee players that the disadvantage is the trade-off for closing in. It is a steady drip, not a save each turn, so it stays fast.
Tell Us How It Ran
This work includes material taken from the System Reference Document 5.1 ("SRD 5.1") by Wizards of the Coast LLC and available at dnd.wizards.com/resources/systems-reference-document. The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License available at creativecommons.org/licenses/by/4.0/legalcode.
Clay Cyanide Miniatures is not affiliated with, endorsed, sponsored, or specifically approved by Wizards of the Coast LLC. This content is compatible with the fifth edition of the world's most popular fantasy roleplaying game. Companion rules, lore, names, and original mechanics © Clay Cyanide LLC.
Technical Specifications
32mm, 75mm
STL, Pre-supported STL
Standard or ABS-like resin, 0.05mm layer height
Yes — ready to print, optimized supports included
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