swarm gain causing

Swarm of Dretches

Monsters Monster Manual

space and vice versa, and the swarm can move through any opening large enough for a Small creature. The swarm can’t regain Hit Points or gain Temporary Hit Points.Multiattack. The swarm makes two

Fetid Aura. Constitution Saving Throw: DC 12, any creature that starts its turn in a 10-foot Emanation originating from the swarm. Failure: The target has the Poisoned condition until the start of

Swarm of Rats

Monsters Monster Manual

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 rat. The swarm can’t regain Hit Points or gain

":"Bites", "rollDamageType":"Piercing"} Piercing damage, or 2 (1d4);{"diceNotation":"1d4", "rollType":"damage", "rollAction":"Bites", "rollDamageType":"Piercing"} Piercing damage if the swarm is Bloodied.Bludgeoning, Piercing, Slashing

Swarm of Venomous Snakes

Monsters Monster Manual

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 snake. The swarm can’t regain Hit Points or gain

the swarm is Bloodied—plus 10 (3d6);{"diceNotation":"3d6", "rollType":"damage", "rollAction":"Bites", "rollDamageType":"Poison"} Poison damage.Bludgeoning, Piercing, Slashing

Swarm of Larvae

Monsters Monster Manual

Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through an opening large enough for a Medium creature. The swarm can’t regain Hit Points or

gain Temporary Hit Points.Bites. Melee Attack Roll: +4;{"diceNotation":"1d20+4", "rollType":"to hit", "rollAction":"Bites"}, reach 5 ft. Hit: 9 (2d6 + 2);{"diceNotation":"2d6+2", "rollType":"damage

Swarm of Piranhas

Monsters Monster Manual

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 piranha. The swarm can’t regain Hit Points or gain

Temporary Hit Points. Water Breathing. The swarm can breathe only underwater.Bites. Melee Attack Roll: +5 (with Advantage if the target doesn’t have all its Hit Points), reach 5 ft. Hit: 8 (2d4

Swarm of Lemures

Monsters Monster Manual

through an opening large enough for a Medium creature. The swarm can’t regain Hit Points or gain Temporary Hit Points.Multiattack. The swarm makes two Vile Slime attacks. Vile Slime. Melee

Hellish Restoration. If the swarm dies in the Nine Hells, it revives with all its Hit Points in 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Hellish Restoration"} days unless it is

Swarm of Bats

Monsters Monster Manual

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 bat. The swarm can’t regain Hit Points or gain

":"Bites", "rollDamageType":"Piercing"} Piercing damage, or 2 (1d4);{"diceNotation":"1d4", "rollType":"damage", "rollAction":"Bites", "rollDamageType":"Piercing"} Piercing damage if the swarm is Bloodied.Bludgeoning, Piercing, Slashing

Swarm of Stirges

Monsters Monster Manual

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 creature. The swarm can’t regain Hit Points or gain

Temporary Hit Points.Swarm of Proboscises. Melee Attack Roll: +5;{"diceNotation":"1d20+5", "rollType":"to hit", "rollAction":"Swarm of Proboscises"}, reach 5 ft. Hit: 14 (2d10 + 3);{"diceNotation

Swarm of Crawling Claws

Monsters Monster Manual

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 creature. The swarm can’t regain Hit Points or gain

Temporary Hit Points.Swarm of Grasping Hands. Melee Attack Roll: +4;{"diceNotation":"1d20+4", "rollType":"to hit", "rollAction":"Swarm of Grasping Hands"}, reach 5 ft. Hit: 20 (4d8 + 2

Swarm of Insects

Monsters Monster Manual

’s space and vice versa, and the swarm can move through any opening large enough for a Tiny insect. The swarm can’t regain Hit Points or gain Temporary Hit Points.Bites. Melee Attack Roll

Spider Climb. If the swarm has a Climb Speed, the swarm can climb difficult surfaces, including along ceilings, without needing to make an ability check. Swarm. The swarm can occupy another creature

Swarm of Ravens

Monsters Monster Manual

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 raven. The swarm can’t regain Hit Points or gain

", "rollAction":"Beaks", "rollDamageType":"Piercing"} Piercing damage, or 2 (1d4);{"diceNotation":"1d4", "rollType":"damage", "rollAction":"Beaks", "rollDamageType":"Piercing"} Piercing damage if the swarm is

Telekinesis

Spells Player’s Handbook

You gain the ability to move or manipulate creatures or objects by thought. When you cast the spell and as a Magic action on your later turns before the spell ends, you can exert your will on one

creature or object that you can see within range, causing the appropriate effect below. You can affect the same target round after round or choose a new one at any time. If you switch targets, the prior

Swarm of Scarabs

Monsters Van Richten’s Guide to Ravenloft

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 scarab. The swarm can’t regain hit points or gain

temporary hit points. Skeletonize. If the swarm starts its turn in the same space as a dead creature that is Large or smaller, the corpse is destroyed, leaving behind only equipment and bones (or

Blackrazor

Magic Items Dungeon Master’s Guide

Hidden in the dungeon of White Plume Mountain, Blackrazor shines like a piece of night sky filled with stars. Its black scabbard is decorated with pieces of cut obsidian. You gain a +3 bonus to

creature whose soul has been devoured by Blackrazor can be restored to life only by a Wish spell. When Blackrazor devours a soul that isn’t yours, you gain Temporary Hit Points equal to the slain

Skeletal Swarm

Monsters Ghosts of Saltmarsh

a Small humanoid. The swarm can't regain hit points or gain temporary hit points.Slash. Melee Weapon Attack: +4;{"diceNotation":"1d20+4","rollType":"to hit","rollAction":"Slash"} to hit, reach 0 ft

Deafening Clatter. Creatures are deafened while in the swarm's space. Swarm. The swarm can occupy another creature's space and vice versa, and the swarm can move through any opening large enough for

Swarm of Mechanical Spiders

Monsters Waterdeep: Dragon Heist

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 insect. The swarm can't regain hit points or gain temporary hit

points. Mechanical. The swarm is made up of Tiny constructs and doesn't require air, food, drink, or sleep.Bite. Melee Weapon Attack: +3;{"diceNotation":"1d20+3","rollType":"to hit","rollAction

Sahuagin Hatchling Swarm

Monsters Ghosts of Saltmarsh

vice versa, and it can move through any opening large enough for a Tiny creature. The swarm can't regain hit points or gain temporary hit points. Water Breathing. The swarm can breathe only

Blood Frenzy. The swarm has advantage on melee attack rolls against any creature that doesn't have all its hit points. Seething. Once it enters combat, the swarm deals 10 slashing damage to itself at

Swarm of Animated Books

Monsters Candlekeep Mysteries

large enough for a 1-foot-tall, 8-inch-wide, 2-inch-thick object. The swarm can’t regain hit points or gain temporary hit points.Book Club. Melee Weapon Attack: +3;{"diceNotation":"1d20+3

False Objects. If the swarm is motionless at the start of combat, it has advantage on its initiative roll. Moreover, if a creature hasn’t observed the swarm move or act, that creature must

Cranium Rat Squeaker Swarm

Monsters Planescape: Adventures in the Multiverse

vice versa, and the swarm can move through any opening large enough for a Tiny rat. The swarm can’t regain hit points or gain temporary hit points. Telepathic Shroud. The swarm is immune to any

Psychic Messenger. The swarm can use its sending spell to target someone familiar to a creature in telepathic contact with the swarm. Swarm. The swarm can occupy another creature’s space and

Swarm of Rats (Diseased Variant)

Monsters Tales from the Yawning Portal

large enough for a Tiny rat. The swarm can't regain hit points or gain temporary hit points.Bite. Melee Weapon Attack: +2;{"diceNotation":"1d20+2","rollType":"to hit","rollAction":"Bite"} to hit, reach

Keen Smell. The swarm has advantage on Wisdom (Perception) checks that rely on smell. Swarm. The swarm can occupy another creature's space and vice versa, and the swarm can move through any opening

Swarm of Gibberlings

Monsters Quests from the Infinite Staircase

another creature’s space and vice versa, and the swarm can move through any opening large enough to accommodate a Small gibberling. The swarm can’t regain hit points or gain temporary hit

Aversion to Fire. If the swarm takes fire damage, it has disadvantage on attack rolls and ability checks until the end of its next turn. Incessant Gibberish. Any non-gibberling that is within 60

Swarm of Cranium Rats

Monsters Mordenkainen Presents: Monsters of the Multiverse

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 rat. The swarm can’t regain hit points or gain

temporary hit points. Telepathic Shroud. The swarm is immune to any effect that would sense its emotions or read its thoughts, as well as to all divination spells.Bites. Melee Weapon Attack: +5

Swarm of Sunflies

Monsters Planescape: Adventures in the Multiverse

gain temporary hit points.Stings. Melee Weapon Attack: +5;{"diceNotation":"1d20+5", "rollType":"to hit", "rollAction":"Stings"} to hit, reach 0 ft., one creature in the swarm’s space. Hit: 10 (3d4

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 dragonfly. The swarm can’t regain hit points or

Neogi Hatchling Swarm

Monsters Spelljammer: Adventures in Space

versa, and the swarm can move through any opening large enough for a Tiny neogi hatchling. The swarm can’t regain hit points or gain temporary hit points.Swarm of Bites. Melee Weapon Attack: +3

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

Swarm of Zombie Limbs

Monsters Van Richten’s Guide to Ravenloft

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 limb. The swarm can’t regain hit points or gain

temporary hit points. Unusual Nature. The swarm doesn’t require air, food, drink, or sleep.Multiattack. The swarm makes one Undead Mass attack and one Grasping Limbs attack. Undead Mass. Melee

Swarm of Hoard Scarabs

Monsters Fizban's Treasury of Dragons

any opening large enough for a Tiny hoard scarab;scarab. The swarm can’t regain hit points or gain temporary hit points.Swarm of Bites. Melee Weapon Attack: +5;{"diceNotation":"1d20+5", "rollType

False Appearance. If the swarm is motionless at the start of combat, it has advantage on its initiative roll. Moreover, if a creature hasn’t observed the swarm move or act, that creature must

Swarm of Gremishkas

Monsters Van Richten’s Guide to Ravenloft

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

Limited Spell Immunity. The swarm automatically succeeds on saving throws against spells of 3rd level or lower, and the attack rolls of such spells always miss it. Swarm. The swarm can occupy

Swarm of Maggots

Monsters Van Richten’s Guide to Ravenloft

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 maggot. The swarm can’t regain hit points or gain

temporary hit points.Infestation. Melee Weapon Attack: +3;{"diceNotation":"1d20+3","rollType":"to hit","rollAction":"Infestation"} to hit, reach 0 ft., one target in the swarm’s space. Hit: 10

Swarm of Campestris

Monsters The Wild Beyond the Witchlight

swarm can move through any opening large enough to accommodate an individual campestri. The swarm can’t regain hit points or gain temporary hit points.Head Butts. Melee Weapon Attack: +0

Mimicry. Each campestri in the swarm can mimic any voice or song it has heard, albeit in a nasal falsetto. Swarm. The swarm can occupy another creature’s space and vice versa, and the

Swarm of Rot Grubs

Monsters Mordenkainen Presents: Monsters of the Multiverse

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 maggot. The swarm can’t regain hit points or gain

temporary hit points.Bites. Melee Weapon Attack: +0;{"diceNotation":"1d20+0", "rollType":"to hit", "rollAction":"Bites"} to hit, reach 0 ft., one creature in the swarm’s space. Hit: 7 (2d6

Kobold Inventor

Monsters Mordenkainen Presents: Monsters of the Multiverse

swarm disperses. A kobold inventor builds improvised weapons to gain an advantage in combat. These weapons last for only one or two attacks before they break and typically work only for the inventor, but

within 20 feet of it. A swarm of insects (centipedes);swarm of insects (centipedes; see the Monster Manual) with 11 hit points emerges from the basket and rolls initiative. At the end of each of the swarm

Undercity Medusa

Monsters Guildmasters’ Guide to Ravnica

dreams of one day reclaiming control of the Golgari Swarm, or at least causing pain to its current guildmaster, Jarad Vod Savo (whose own sister displaced the medusas from their position).

guildmaster of the Golgari Swarm. Ludmilla no longer has the collective power of her medusa sisters, so she's been forced to lurk in Ravnica's undercity, surrounded by hundreds of her petrified victims. She

Kalaraq Quori

Monsters Eberron: Rising from the Last War

can free the thrall from this control. Swarm of Eyes (Recharge 6);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Swarm of Eyes"}. The quori creates a swarm of spectral eyes that fills a 30

","rollType":"damage","rollAction":"Swarm of Eyes","rollDamageType":"psychic"} psychic damage, and it is blinded for 1 minute. On a success, a creature takes half as much damage and isn't blinded. A

Yeenoghu

Monsters Mordenkainen Presents: Monsters of the Multiverse

them into flind;flinds. Yeenoghu takes pleasure in causing fear before death, and he sows sorrow and despair through destroying beloved things. He doesn’t parlay; to meet him is to do battle with

count 20, all gnoll;gnolls and hyena;hyenas within the lair are enraged, causing them to have advantage on melee weapon attack rolls and causing attack rolls to have advantage against them. Iron Spike

Sibriex

Monsters Mordenkainen Presents: Monsters of the Multiverse

save, the target is poisoned, which causes it to also gain 1 level of exhaustion. While poisoned in this way, the target must repeat the saving throw at the start of each of its turns. Three

successful saves against the poison end it, and ending the poison removes any levels of exhaustion caused by it. Each failed save causes the target to gain another level of exhaustion. Once the target reaches

D&D Beyond

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