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Returning 35 results for 'monster swarm with only advances from for long'.
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Magic Items
Dungeon Master’s Guide
24 hours. On a failed save, the swarm is swayed by the pipes’ music and becomes Friendly to you and your allies for as long as you continue to play the pipes each round as a Magic action. A
regain 1d3 expended charges daily at dawn. If you play the pipes as a Magic action, you can take a Bonus Action to expend 1 to 3 charges, calling forth one Swarm of Rats with each expended charge if
Magic Items
Dungeon Master’s Guide
its normal casting time, and you can’t use this property again until you finish a Short or Long Rest. On a failed check, you fail to cast the spell and a random effect occurs instead
just happened.
56–60
A harmless swarm of butterflies fills a 10-foot Cube within 30 feet of yourself. The swarm disperses after 1 minute.
61–65
You pull a nonmagical object
Monsters
Monster Manual
with spell attacks):
At Will: Detect Magic, Hold Monster, Ice Knife, Shapechange (Beast or Humanoid form only, no Temporary Hit Points gained from the spell, and no Concentration or Temporary Hit
use to take one of the following actions. The dragon regains all expended uses at the start of each of its turns.
Chill. The dragon uses Spellcasting to cast Hold Monster. The dragon can’t take
Monsters
Monster Manual
uses Spellcasting to cast Hold Monster. The dragon can’t take this action again until the start of its next turn.
Cold Gale. Dexterity Saving Throw: DC 23, each creature in a 60-foot-long, 10
":"Spellcasting"} to hit with spell attacks):
At Will: Detect Magic, Hold Monster, Ice Knife (level 2 version), Shapechange (Beast or Humanoid form only, no Temporary Hit Points gained from the spell, and
Monsters
Monster Manual
Advantage on saving throws against spells and other magical effects.
Siege Monster. The colossus deals double damage to objects and structures.Multiattack. The colossus makes three attacks, using Slam or
"}. Dexterity Saving Throw: DC 26, each creature in a 300-foot-long, 10-foot-wide Line. Failure: 65 (10d12);{"diceNotation":"10d12", "rollType":"damage", "rollAction":"Divine Beam", "rollDamageType
Magic Items
Dungeon Master’s Guide
stone cracks and turns to powder if the book rests on it long enough.
Whenever a creature that isn’t a Fiend or an Undead attunes to the Book of Vile Darkness, that creature makes a DC 17
remains with you only as long as you strive to work evil in the world. If you fail to perform at least one evil act within the span of 10 days, or if you willingly perform a good act, the book
Monsters
Mordenkainen Presents: Monsters of the Multiverse
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
breaks open on impact. A swarm of rot grubs emerges from the shattered pot and remains a hazard in that square.
Scorpion on a Stick. The kobold makes a melee attack with a scorpion (see the Monster
Monsters
Planescape: Adventures in the Multiverse
the spellcasting ability (spell save DC 13):
At will: command,* detect thoughts,* sending*
1/day each: confusion,* dominate monster*
*To cast this spell, the swarm must have more than half its hit
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
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
Monsters
Mordenkainen Presents: Monsters of the Multiverse
constituents. The rats become smarter as a result, and retain their heightened intelligence for as long as the swarm persists. The swarm also awakens latent psionic abilities implanted within each cranium
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
Monsters
Van Richten’s Guide to Ravenloft
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
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
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
Monsters
Mordenkainen Presents: Monsters of the Multiverse
their heightened intelligence for as long as the swarm persists. The swarm also awakens latent psionic abilities implanted within each cranium rat by its mind flayer creators, bestowing upon the swarm
rats come together to form a swarm, they merge their minds into a single intelligence with the accumulated memories of all the swarm’s constituents. The rats become smarter as a result, and retain
Monsters
Acquisitions Incorporated
more than two targets at a time.
Chaos Cloud (Recharges after a Short or Long Rest). The chaos quadrapod shoots forth a knot of roiling ethereal light that explodes at a point it can see within 60
quadrapod ambulates by flinging its mucus-covered tentacles out and dragging itself along, creating a horrid slurping sound as it advances relentlessly toward its prey.
Monsters
Spelljammer: Adventures in Space
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 neogi hatchling. The swarm can’t regain hit points or gain temporary hit points.Swarm of Bites. Melee Weapon Attack: +3
Monsters
Quests from the Infinite Staircase
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
feet of the swarm and doesn’t have the deafened condition has disadvantage on Constitution saving throws to maintain concentration on spells and similar effects.
Swarm. The swarm can occupy
Monsters
Thieves’ Gallery
each: Evard's black tentacles, finger of death, time stop
Swarm of Meteors (1/Day). Sofina magically calls down a meteor swarm that detonates in four 40-foot-radius spheres, each one centered on a point
", "rollType":"damage", "rollAction":"Swarm of Meteors", "rollDamageType":"fire"} fire damage and 35 (10d6);{"diceNotation":"10d6", "rollType":"damage", "rollAction":"Swarm of Meteors", "rollDamageType
Monsters
Van Richten’s Guide to Ravenloft
","rollType":"heal","rollAction":"Magic Allergy"} hit points.
5–6. The gremishka explodes and dies, and one swarm of gremishkas instantly appears in the space where this gremishka died. The swarm uses
overwhelm—or just get a bite of.
Gremishkas have an unstable relationship with magic. Spells cast near a gremishka might rebound onto those nearby or cause the monster to explode, its scaly chunks
Monsters
Mythic Odysseys of Theros
attack with her claws.
Swarm (Costs 2 Actions). Arasta causes two Swarm of Insects (Spiders) ;swarms of spiders (see the Monster Manual) to appear in unoccupied spaces within 5 feet of her.
Toxic Web
ground ripples and bursts over the monster, revealing itself as a wave of countless spiders. The tiny arachnids swarm the larger horror, girding it in skittering bodies.
Fighting Arasta as a mythic
Monsters
Baldur’s Gate: Descent into Avernus
spellcasting ability is Charisma (spell save DC 23). Bel can innately cast the following spells, requiring no material components:
At will: detect magic, fireball
3/day each: dispel magic, hold monster
, mirror image, mislead, raise dead, teleport, wall of fire
1/day each: imprisonment, meteor swarm
Legendary Resistance (3/Day). If Bel fails a saving throw, he can choose to succeed instead.
Magic
Monsters
Van Richten’s Guide to Ravenloft
":"poison"} poison damage on a failed save, or half as much damage on a successful one. A Humanoid reduced to 0 hit points by this damage dies and rises as a zombie (see its stat block in the Monster
into a dragon’s maw until the monster chokes. In the course of their relentless marches, zombies might suffer all manner of trauma, potentially reducing them to masses of crawling limbs (see
Monsters
Mordenkainen Presents: Monsters of the Multiverse
material components and using Charisma as the spellcasting ability (spell save DC 21):
At will: command, dispel magic, hold monster
1/day: feeblemind
Warp Creature. The sibriex targets up to three
6 levels of exhaustion, it dies and instantly transforms into a living manes (see the Monster Manual) under the sibriex’s control. The transformation of the body can be undone only by a wish
Monsters
Quests from the Infinite Staircase
. Loud and shrill, their exasperating nonsense distracts even the most focused creatures. Swarm of Gibberlings;Gibberling swarms are heard long before they are seen.
The first gibberlings were spawned
Monsters
Curse of Strahd
Shapechanger. Baba Lysaga can use an action to polymorph into a swarm of insects (flies), or back into her true form. While in swarm form, she has a walking speed of 5 feet and a flying speed of 30
":"1d8+4","rollType":"damage","rollAction":"Quarterstaff","rollDamageType":"bludgeoning"} bludgeoning damage if wielded with two hands.
Summon Swarms of Insects (Recharges after a Short or Long Rest
Monsters
Eberron: Rising from the Last War
throw or be cursed. The curse lasts until it's removed by a remove curse or greater restoration spell.
The cursed target suffers 1 level of exhaustion every 24 hours, and finishing a long rest
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
Monsters
Guildmasters’ Guide to Ravnica
","rollDamageType":"piercing"} piercing damage if used with two hands to make a melee attack.The kraul are an ascendant power group within the Golgari Swarm, long content to linger at the margins of
Monsters
Van Richten’s Guide to Ravenloft
their disregard for their own well-being. A throng of zombies will douse a forest fire with their own ashes or march into a dragon’s maw until the monster chokes. In the course of their relentless
marches, zombies might suffer all manner of trauma, potentially reducing them to masses of crawling limbs (see swarm of zombie limbs), infecting them with terrible diseases (see zombie plague spreader), or crushing an entire horde into a single, rotting titan.Poison
Monsters
Mordenkainen Presents: Monsters of the Multiverse
reduced by 1d4;{"diceNotation":"1d4","rollType":"roll","rollAction":"Bite"}. This reduction lasts until the target finishes a short or long rest. The target dies if this reduces its Charisma to 0. It rises
24 hours later as a ghoul (see the Monster Manual), unless it has been revived or its corpse has been destroyed.
Claws. Melee Weapon Attack: +6;{"diceNotation":"1d20+6","rollType":"to hit
Magic Items
Van Richten’s Guide to Ravenloft
until either Harkon Lukas removes the necklace from you or you are targeted by a remove curse spell or similar magic. As long as you remain cursed, you cannot remove the necklace.
Upon donning or
removing the necklace, whether you are attuned to it or not, you are afflicted with werewolf lycanthropy as detailed in the Monster Manual. The curse lasts until the dawn after the next full moon. If you are still wearing the necklace at this time, you are afflicted with the lycanthropy again.
Monsters
Icewind Dale: Rime of the Frostmaiden
, and the vampire regains hit points equal to that amount. The reduction lasts until the target finishes a long rest. The target dies if its hit point maximum is reduced to 0.The gnoll vampire Tekeli-li
, so they give Tekeli-li a wide berth. These ravenous undead kobolds thirst for blood and tend to swarm one foe at a time.Necrotic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Monsters
Tomb of Annihilation
one.
Immutable Form. The juggernaut is immune to any spell or effect that would alter its form.
Regeneration. As long as it has 1 hit point left, the juggernaut magically regains all its hit points
daily at dawn. The juggernaut is destroyed and doesn't regenerate if it drops to 0 hit points.
Siege Monster. The juggernaut deals double damage to objects and structures.Slam. Melee Weapon Attack: +10
Monsters
Waterdeep: Dungeon of the Mad Mage
1d4;{"diceNotation":"1d4","rollType":"roll"} each time it is hit by this attack. The target dies if its Strength is reduced to 0. The reduction lasts until the target finishes a short or long rest
.
If a non-evil humanoid dies from this attack, a shadow (see the Monster Manual) rises from the corpse 1d4;{"diceNotation":"1d4","rollType":"roll"} hours later.Necrotic, PoisonAcid, Cold, Fire, Lightning, Thunder; Bludgeoning, Piercing, and Slashing from Nonmagical AttacksRadiant
Monsters
Guildmasters’ Guide to Ravnica
","rollType":"damage","rollAction":"Quarterstaff","rollDamageType":"bludgeoning"} bludgeoning damage if used with two hands.The kraul are an ascendant power group within the Golgari Swarm, long content to
Monsters
Mordenkainen Presents: Monsters of the Multiverse
disease or become poisoned. At the end of each long rest, the poisoned target can repeat the saving throw, ending the effect on itself on a success. If the target is reduced to 0 hit points while
poisoned in this way, it dies and instantly transforms into a living manes (see the Monster Manual). The transformation can be undone only by a wish spell.Rutterkins are warped demons that roam the Abyss in
Monsters
Planescape: Adventures in the Multiverse
if the target is a creature, the target’s hit point maximum is reduced by an amount equal to the necrotic damage taken. This reduction lasts until the target finishes a long rest. The target
experiences, particularly great meals, with the monster. Some might even convince a darkweaver to release them if they promise to return with rare spices or one-of-a-kind meals. Those who manage to






