Swarm of Bones (5e Monster)

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Disambiguation.png This article is about Swarm of Bones, homebrew 5e monster.
For other uses of Swarm of Bones, see Swarm of Bones (disambiguation).

Author: Rlyehable (talk)
Date Created: 2019-07-29
Status: Finished
Editing: Clarity edits only please
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Swarm of Bones
Large swarm of tiny undead, chaotic evil
Armor Class: 10
Hit Points: 39 (8d10)
Speed: 30 ft., climb 30 ft.
12 (+1) 12 (+1) 10 (+0) 5 (-3) 10 (+0) 3 (-4)
Damage Resistances: bludgeoning, piercing, and slashing
Condition Immunity: charmed, exhaustion, frightened, grappled, paralyzed, poisoned, prone, restrained, stunned, suffocating
Senses: blindsight 30 ft., passive Perception 10
Challenge: 2 (450 xp)
False Appearance. If the swarm does not move, it appears to be an inanimate pile of bones.

Magical Attacks. The swarm's attacks are magical for overcoming immunities and resistances.

Spider Climb. The swarm can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening large enough for a Tiny bone. The swarm can’t regain hit points or gain temporary hit points.


Multiattack. The swarm makes one attack against each creature in its space plus one attack against a creature outside its space but within reach.

Cuts, Stabs, and Slams. Melee Weapon Attack: +3 to hit, reach 5 ft., one creature. Hit: 4 (1d6+1) piercing damage, 4 (1d6+1) slashing damage, and 4 (1d6+1) bludgeoning damage.

Sometimes skeletons, once destroyed, retain some of the magic that animated them. The magic twists and the remaining bones and bone fragments will conglomerate into a pile that will will seek out other skeletal remains inanimate or undead, humanoid, beast, monstrosity, or whatever it can find, and absorb them into the swarm.

The swarm hates all of the living. It will kill and strip the flesh from any creature it encounters, adding the bones to the swarm.

The swarm is especially vengeful against the person that created the original undead skeletons that spawned it, and will know its creator if it comes within range of its blindsight. It will seek out its creator, although it has no special ability to find its creator. But if it finds the creator, it will attack it in preference to all other creatures.


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Rlyehable's Homebrew (129 Articles)
AlignmentChaotic Evil +
AuthorRlyehable +
Challenge Rating2 +
Experience Points450 +
FeaturesFalse Appearance +, Magical Attacks +, Spider Climb +, Swarm +, Multiattack + and Cuts, Stabs, and Slams +
Hit Dice8d10 +
Hit Points39 +
Identifier5e Monster +
RatingUndiscussed +
SizeLarge +
SortTextSkeleton Swarm of Bones +
SubtypeUndead +
TitleSwarm of Bones +
TypeSwarm +