Bone Swarm (5e)

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Disambiguation.png This article is about Swarm of Bones, Bone Swarm from Kobold Press.
For other uses of Swarm of Bones, see Swarm of Bones (disambiguation).
This material is published under the OGL
Bone Swarm
Large Swarm of Tiny Undead, Chaotic Evil
Armor Class: 17 (natural armor)
Hit Points: 198 (36d10)
Speed: 20 ft., fly 60 ft.
22 (+6) 18 (+4) 10 (+0) 9 (-1) 15 (+2) 20 (+5)
Saving Throws: Dex +8, Wis +6, Cha +9
Skills: Acrobatics +8, Perception +6, Stealth +8
Damage Vulnerabilities: bludgeoning
Damage Resistances: piercing and slashing from nonmagical weapons.
Damage Immunity: poison
Condition Immunity: charmed, exhaustion, frightened, paralyzed, poisoned, prone, restrained, stunned
Senses: darkvision 60 ft., passive Perception 16
Languages: Common, Void Speech
Habitat: Coastal, Hill, Mountain, Underground
Challenge: 10 (5,900 xp)Proficiency Bonus (PB): +4
Strength of Bone. A bone swarm can choose to deal bludgeoning, piercing, or slashing damage, and adds 1.5× its Strength bonus on swarm damage rolls as bits and pieces of broken skeletons claw, bite, stab, and slam at the victim.

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


Multiattack. The bone swarm can attack every hostile creature in its space with swirling bones.

Swirling Bones. Melee Weapon Attack: +10 to hit, reach 0 ft., one creature in the swarm's space. Hit: 31 (5d8+9) bludgeoning, piercing, or slashing damage (includes Strength of Bone special ability.

Death's Embrace (Recharge 5-6). Melee Weapon Attack: +10 to hit, reach 0 ft., one creature in the swarm's space. Hit: the target is grappled (escape DC 16) and enveloped within the swarm’s bones. The swarm can force the creature to move at its normal speed wherever the bone swarm wishes. Any non-area attack against the bone swarm has a 50% chance of hitting a creature grappled in Death’s Embrace instead.

Unofficial Description: Animated pile of undead bones[1]

Sources and Notes[edit]

  1. unofficial description by user:Rlyehable. Not part of the published material.

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Facts about "Bone Swarm (5e)"
AlignmentChaotic Evil +
AuthorTome of Beasts +
CRval10 +
Canontrue +
Challenge Rating10 +
Creature NameBone Swarm +
Experience Points5,900 +
FeaturesStrength of Bone +, Swarm +, Multiattack +, Swirling Bones +, Death's Embrace + and {{{feature1}}} +
HabitatCoastal +, Hill +, Mountain + and Underground +
Hit Dice36d10 +
Hit Points198 +
NameBone Swarm +
SizeLarge +
SortTextBone Swarm 5e +
SubtypeUndead +
SummaryAnimated pile of undead bones +
TypeSwarm +