measure swarm with only arcane for for long

Pipes of the Sewers

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

Hat of Many Spells

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

Sphinx of Valor

Monsters Monster Manual

":"Slashing"} Slashing damage. Roar (3/Day). The sphinx emits a magical roar. Whenever it roars, the roar has a different effect, as detailed below (the sequence resets when it takes a Long Rest): First

actions. The sphinx regains all expended uses at the start of each of its turns. Arcane Prowl. The sphinx can teleport up to 30 feet to an unoccupied space it can see, and it makes one Claw attack

Guards and Wards

Spells Player’s Handbook

sealed by the Arcane Lock spell. In addition, you can cover up to ten doors with an illusion to make them appear as plain sections of wall. Stairs. Webs fill all stairs in the warded area from top to

area: Dancing Lights in four corridors, with a simple program that the lights repeat as long as Guards and Wards lasts Magic Mouth in two locations Stinking Cloud in two locations (the vapors

Orb of Dragonkind

Magic Items Dungeon Master’s Guide

Long ago, in the Dragonlance setting, elves and humans waged a terrible war against chromatic dragons. When the world seemed doomed, the wizards of the Towers of High Sorcery came together and forged

. Their magic has been warped over the centuries. Their primary purpose of calling dragons still functions, but they also allow some measure of control over dragons. Each orb contains the essence of

Pipes of Pestilence

Magic Items Stranger Things: Welcome to the Hellfire Club

If you play these pipes as a Magic action, you summon one Swarm of Corrupted Rats in an unoccupied space within 60 feet of yourself. The swarm is Friendly to you and your allies for as long as you

continue to play the pipes each round as a Magic action. While Friendly, the swarm is under your control, obeys your commands, and takes no action other than to defend itself if you issue it no commands

Manshoon

Monsters Forgotten Realms: Adventures in Faerûn

Magic Resistance. Manshoon has Advantage on saving throws against spells and other magical effects.Multiattack. Manshoon makes three Arcane Burst attacks. He can replace two attacks with a use of

Spellcasting. Arcane Burst. Melee or Ranged Attack Roll: +11;{"diceNotation":"1d20+11", "rollType":"to hit", "rollAction":"Arcane Burst"}, reach 5 ft., or range 120 ft. Hit: 32 (4d12 + 6);{"diceNotation

Young Spirit Dragon

Monsters Forgotten Realms: Adventures in Faerûn

minute, it succeeds automatically.Curious and self-confident, young spirit dragons can cause trouble for a region’s other denizens, by either unleashing long-buried evils or misusing scarcely

artificers. 3 Jhaamdath, a prehistoric psiocracy. 4 Myth Drannor, a legendary city of magic. 5 Netheril, an empire of arcane secrets. 6 Ostoria, the first kingdom of the giants

Mark of Warding

Feats Eberron: Forge of the Artificer

each spell once without a spell slot, and you regain the ability to cast it in that way when you finish a Long Rest. You can also cast these spells using any spell slots you have of the appropriate

level. Intelligence, Wisdom, or Charisma is your spellcasting ability for these spells (choose when you select this feat). When you reach character level 3, you also always have the Arcane Lock spell

Mark of Detection

Feats Eberron: Forge of the Artificer

you finish a Long Rest. You can also cast these spells using any spell slots you have of the appropriate level. Intelligence, Wisdom, or Charisma is your spellcasting ability for these spells (choose

Evil and Good, Identify 2 Detect Thoughts, Find Traps 3 Clairvoyance, Nondetection 4 Arcane Eye, Divination 5 Legend Lore

Mark of Healing

Feats Eberron: Forge of the Artificer

, and you regain the ability to cast it in that way when you finish a Long Rest. You can also cast it using any spell slots you have of the appropriate level. Intelligence, Wisdom, or Charisma is your

Spell Level Spells 1 False Life, Healing Word 2 Arcane Vigor, Prayer of Healing 3 Aura of Vitality, Mass Healing Word 4 Aura of Life, Aura of Purity 5 Greater Restoration

Pipes of the Sewers Legacy

Magic Items Basic Rules (2014)

long as you continue to play the pipes each round as an action. A friendly swarm obeys your commands. If you issue no commands to a friendly swarm, it defends itself but otherwise takes no actions. If

unless you threaten or harm them. The pipes have 3 charges. If you play the pipes as an action, you can use a bonus action to expend 1 to 3 charges, calling forth one swarm of rats with each expended

Swarm of Cranium Rats Legacy

Monsters Volo's Guide to Monsters

Illumination. As a bonus action, the swarm can shed dim light from its brains in a 5-foot radius, increase the illumination to bright light in a 5- to 20-foot radius (and dim light for an additional

number of feet equal to the chosen radius), or extinguish the light. Innate Spellcasting (Psionics). The swarm's innate spellcasting ability is Intelligence (spell save DC 13). As long as it has more

Kalaraq Quori

Monsters Eberron: Rising from the Last War

following spells, requiring no components: At will: arcane eye 3/day each: clairvoyance, confusion, dream, eyebite Magic Resistance. The quori has advantage on saving throws against spells and other

magical effects.Multiattack. The quori makes two Soul Binding attacks. Alternatively, it can make four attacks with Arcane Blast. Arcane Blast. Ranged Spell Attack: +13;{"diceNotation":"1d20+13

Swarmkeeper

Classes Tasha’s Cauldron of Everything

into the swarm, instead of a cloud of mist, or the arcane eye spell could create an extension of your swarm that spies for you. Such descriptions don’t change the effects of spells, but they are

Feeling a deep connection to the environment around them, some rangers reach out through their magical connection to the world and bond with a swarm of nature spirits. The swarm becomes a potent

Swarm of Cranium Rats

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

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

Cranium Rat

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

Swarmkeeper (TCoE)

Classes Tasha’s Cauldron of Everything

into the swarm, instead of a cloud of mist, or the arcane eye spell could create an extension of your swarm that spies for you. Such descriptions don’t change the effects of spells, but they are

Feeling a deep connection to the environment around them, some rangers reach out through their magical connection to the world and bond with a swarm of nature spirits. The swarm becomes a potent

Neogi Hatchling Swarm

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

Swarm of Gibberlings

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

Kobold Inventor

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

’s turns, there’s a 50 percent;{"diceNotation":"1d100","rollType":"roll","rollAction":"Basket of Centipedes"} chance that the swarm disperses. Green Slime Pot. The kobold throws a clay

Baba Lysaga

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

black tentacles, polymorph 5th level (2 slots): cloudkill, geas, scrying 6th level (1 slot): programmed illusion, true seeing 7th level (1 slot): finger of death, mirage arcane 8th level (1 slot

Transmuter Wizard

Monsters Mordenkainen Presents: Monsters of the Multiverse

each long rest: Darkvision. The transmuter has darkvision out to a range of 60 feet. Resilience. The transmuter has proficiency in Constitution saving throws. Resistance. The transmuter has

transmuter makes three Arcane Burst attacks. Arcane Burst. Melee or Ranged Spell Attack: +6;{"diceNotation":"1d20+6", "rollType":"to hit", "rollAction":"Arcane Burst"} to hit, reach 5 ft. or range

Kobold Inventor Legacy

Monsters Volo's Guide to Monsters

flames. Basket of Centipedes. The kobold throws a small basket into a 5-foot-square space within 20 feet of it. A swarm of insects (centipedes) with 11 hit points emerges from the basket and rolls

initiative. At the end of each of the swarm’s turns, there’s a 50 percent;{"diceNotation":"1d100","rollType":"roll","rollAction":"Dispersal"} chance that the swarm disperses. Green Slime Pot

Cursed Luckstone

Magic Items Ghosts of Saltmarsh

This flat, gray-and-black river stone is inscribed with an unknown arcane symbol and feels cool to the touch. While carrying the stone, you can gain advantage on one ability check of your choice. The

stone can’t be used this way again until the next dawn. Curse. This item is cursed. Attuning to it curses you until you are targeted by a remove curse spell or similar magic. As long as you

Prisoner 237

Monsters Icewind Dale: Rime of the Frostmaiden

Brotherhood but rather hatched by Gant himself, who intended to impress his superiors by pulling it off. For a long time, Gant held out hope that the Arcane Brotherhood would apply pressure to secure his

, sleep 2nd level (3 slots): arcane lock,* detect thoughts,* suggestion* 3rd level (2 slots): counterspell, lightning bolt* *Prisoner 237 needs material components to cast these spells.Shocking Grasp

Sul Khatesh

Monsters Eberron: Rising from the Last War

","rollAction":"Magic Staff","rollDamageType":"force"} force damage. Arcane Cataclysm (Recharges after a Long Rest). Sul Khatesh conjures orbs of magical energy that plummet to the ground at three

Constitution saving throws to maintain concentration.Multiattack. Sul Khatesh makes four attacks with Arcane Blast. Arcane Blast. Ranged Spell Attack: +18;{"diceNotation":"1d20+18","rollType":"to hit

Nokumai's Frozen Breath

Equipment

breath is desired by all who deal in things of an arcane nature. It’s rumored that Nokumai’s Frozen Breath never thaws, and the great dragon only breathes once every thousand years, although no one living has actually seen Nokumai and the dragon may be long gone.

Drow Favored Consort

Monsters Mordenkainen Presents: Monsters of the Multiverse

rolls, as well as on Wisdom (Perception) checks that rely on sight.Multiattack. The drow makes three Scimitar or Arcane Eruption attacks. The drow can replace one of the attacks with a use of

damage. Arcane Eruption. Ranged Spell Attack: +10;{"diceNotation":"1d20+10", "rollType":"to hit", "rollAction":"Arcane Eruption"} to hit, range 120 ft., one target. Hit: 36 (8d8);{"diceNotation":"8d8

Gloom Weaver Legacy

Monsters Mordenkainen’s Tome of Foes

hit","rollAction":"Innate Spellcasting"} to hit with spell attacks). It can innately cast the following spells, requiring no material components: At will: arcane eye, mage armor, speak with dead 1/day

each: arcane gate, bane, compulsion, confusion, true seeing Spellcasting. The gloom weaver is a 12th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 16, +8;{"diceNotation":"1d20

Alhoon

Monsters Mordenkainen Presents: Monsters of the Multiverse

Undead.Multiattack. The alhoon makes two Chilling Grasp or Arcane Bolt attacks. Chilling Grasp. Melee Spell Attack: +8;{"diceNotation":"1d20+8", "rollType":"to hit", "rollAction":"Chilling Grasp"} to hit

, reach 5 ft., one target. Hit: 14 (4d6);{"diceNotation":"4d6", "rollType":"damage", "rollAction":"Chilling Grasp", "rollDamageType":"cold"} cold damage, and the alhoon regains 14 hit points. Arcane

Gibberling

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

Inspired (Kalaraq variant)

Monsters Eberron: Rising from the Last War

Dual Mind. The Inspired has advantage on Wisdom saving throws. All Around Vision. The Inspired can’t be surprised. Arcane Eye (3/Day). The Inspired can cast the arcane eye spell, requiring no

Dreaming Dark. Such Inspired have to willingly accept quori possession, but the Dreaming Dark has long experience in weaving dreams that can convince mortals to surrender their bodies. VARIANT: QUORI

Halaster Blackcloak

Monsters Waterdeep: Dungeon of the Mad Mage

attunement). It can be used as an arcane focus. Whoever is attuned to the blast scepter gains resistance to fire and lightning damage and can, as an action, use it to cast thunderwave as a 4th-level spell

restrictions (see “Alterations to Magic”). Arcane Recovery (1/Day). When he finishes a short rest, Halaster recovers all his spell slots of 5th level and lower. Legendary Resistance (3

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