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Returning 35 results for 'master swarm with only arcane fiends 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
":"damage", "rollAction":"Fiendish Blood", "rollDamageType":"Acid"} Acid damage, and the target is cursed until it finishes a Short or Long Rest. While cursed, the target can’t benefit from the
Invisible condition, its Speed decreases by 10 feet, and all Fiends within 120 feet of the target can sense its location regardless of interposing obstacles.Acid, Cold
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
Magic Items
Dungeon Master’s Guide
finish a Long Rest, if you and the Demonomicon are on the same plane of existence, one trapped creature within the book can attempt to possess you. You make a DC 20 Charisma saving throw. On a failed
successful save, the Fiend can’t try to possess you again for 7 days (but another Fiend trapped in the book can certainly try).
When the tome is discovered, it has 1d4 Fiends occupying its pages&mdash
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
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
Magic action to peer into the orb’s depths. You must then make a DC 15 Charisma saving throw. On a successful save, you control the orb for as long as you remain attuned to it. On a failed save, the
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
Magic Items
Dungeon Master’s Guide
last only as long as you strive to do good. If you fail to perform at least one act of kindness or generosity within the span of 10 days, or if you willingly perform an evil act, you lose all the
addition, Fiends and Undead within the halo’s Bright Light make attack rolls against you with Disadvantage.
Random Properties. The Book of Exalted Deeds has the following random properties:
2
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
throw, she can choose to succeed instead.
Magic Resistance. Sul Khatesh has advantage on saving throws against spells and other magical effects.
Master of Magic. Sul Khatesh has advantage on
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
Monsters
Mythic Odysseys of Theros
":"Storm of Crows"}. The abhorrent overlord conjures a swarm of spectral crows and harpies in a 20-foot-radius sphere centered on a point the overlord can see within 120 feet of it. The sphere remains for 1
; these fiends delight in searching out treasure and slaughtering all who stand in their way.
Fell Minions. Harpies, vultures, crows, and other flying scavengers are attracted to an overlord's presence
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
Mordenkainen Presents: Monsters of the Multiverse
re-forms within hours.
In service to its master, a boneclaw delights in causing horrific pain. It lurks like a spider in shadowy recesses, waiting for victims to approach within reach of its long
Rejuvenation. While its master lives, a destroyed boneclaw gains a new body in 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Hours"} hours, with all its hit points. The new body
Monsters
Baldur’s Gate: Descent into Avernus
":"damage","rollDamageType":"necrotic"} necrotic damage.Those who follow Myrkul are either wizards or those who seek to master the necromantic arts.
Delvers into Lore. Cultists of Myrkul study rituals
that allow them to force the souls of the dead into service, compelling them to answer questions and share forgotten lore. They seek out arcane secrets in ancient ruins, and attempt to steal
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
Baldur’s Gate: Descent into Avernus
Grave Magic. When the master of souls cast a spell that deals damage, it can change the spell's damage type to necrotic.
Spellcasting. The master of souls is a 5th-level spellcaster. Its spellcasting
): darkness, misty step, scorching ray (see “Actions” below)
3rd level (2 slots): animate dead, fireballMultiattack. The master of souls attacks twice with its flail.
Silvered Skull Flail. Melee
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
Baldur’s Gate: Descent into Avernus
master the necromantic arts.
Delvers into Lore. Cultists of Myrkul study rituals that allow them to force the souls of the dead into service, compelling them to answer questions and share forgotten
lore. They seek out arcane secrets in ancient ruins, and attempt to steal spellbooks and other tomes from wizards outside of the cult.
Cult Ranks. A follower of Myrkul wields a flail that has a skull
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
Monsters
Mordenkainen Presents: Monsters of the Multiverse
, prestidigitation
2/day each: charm person, fog cloud, levitateKobold scale sorcerers have an innate talent for arcane magic, making them highly valuable members of their communities. These sorcerers
requires them not to fawn over their master at all times. They also understand that their frequent proximity to their dragon master means they would probably be the first to die if their master became
Monsters
Mythic Odysseys of Theros
(Recharges after a Short or Long Rest). The shepherd pulls twisted souls from the Underworld; 1d6;{"diceNotation":"1d6","rollType":"roll","rollAction":"Herd the Underworld"} shadow;shadows (without
miserable lives they had. Having been despicable in life, these spirits fester in death. The worst of these hateful dead, through ages of bitterness, gradually transform into fiends, the tormentors of
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
Monsters
Icewind Dale: Rime of the Frostmaiden
painfully obvious to Zelenn that Nass has been slow to master the arcane tradition of divination. Zelenn’s suggestion that Nass leave the Hosttower of the Arcane and gain experience abroad left Nass
overheard her master talking to another wizard about a covert expedition to Icewind Dale being undertaken to seek out long-lost magic from a bygone empire. Rather than carry out her original plan, Nass
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
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
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
Monsters
Van Richten’s Guide to Ravenloft
turn.
Innate Spellcasting (Psionics). The inquisitor casts one of the following spells, requiring no components and using Charisma as the spellcasting ability (spell save DC 15):
At will: arcane eye
ensure that those powers never rose again. Strahd, Ulmed, and their companions hunted Fiends, Undead, Aberrations, and other supernatural threats and were tireless foes of cults like the priest of
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
Monsters
Adventure Atlas: The Mortuary
table presents some contents an animated coffin might contain when encountered.
Animated Coffin Contents
d6
Contents
1
1d4 swarm of bats
2
1d4 Skeleton;skeletons packed like
sardines
3
A groaning mummy
4
A patch of yellow mold (see the Dungeon Master’s Guide)
5
A slumbering vampire spawn
6
A portal to the Path of Graves (detailed in Adventure Atlas: The Mortuary)
Poison, Psychic
Monsters
Ghosts of Saltmarsh
maximum to 0. This reduction lasts until the target finishes a long rest. On a failed save, the target also contracts bluerot (see the “Bluerot” sidebar).
Necrotic Ink (Recharge 5–6). The drowned master
Bound Together. The drowned master shares its mind with every other drowned one within 1 mile of it, and can communicate its thoughts and observations to them instantaneously and without limitation
Monsters
Mordenkainen Presents: Monsters of the Multiverse
, regardless of distance, so long as it and its master are in the same body of water.Deep scions began life as people who were stolen from shore or saved from sinking ships and offered a terrible bargain
(Hybrid Form Only; Recharges after a Short or Long Rest). The deep scion emits a terrible scream audible within 300 feet. Creatures within 30 feet of the deep scion must succeed on a DC 13 Wisdom saving
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