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Returning 35 results for 'swarm of roll deadly variants'.
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Monsters
Monster Manual
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
its next turn. While Poisoned, the target can take either an action or a Bonus Action on its turn, not both, and it can’t take Reactions.
Swarm. The swarm can occupy another creature’s
Monsters
Monster Manual
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
killed by a creature under the effects of a Bless spell or its remains are sprinkled with Holy Water.
Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move
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
Temporary Hit Points.Bites. Melee Attack Roll: +2;{"diceNotation":"1d20+2", "rollType":"to hit", "rollAction":"Bites"}, reach 5 ft. Hit: 5 (2d4);{"diceNotation":"2d4", "rollType":"damage", "rollAction
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
Temporary Hit Points.Bites. Melee Attack Roll: +6;{"diceNotation":"1d20+6", "rollType":"to hit", "rollAction":"Bites"}, reach 5 ft. Hit: 8 (1d8 + 4);{"diceNotation":"1d8 + 4", "rollType":"damage
Magic Items
Dungeon Master’s Guide
expend to cast the spell.
Spell
Charge Cost
Giant Insect
4
Insect Plague
5
Regaining Charges. The staff regains 1d6 + 4 expended charges daily at dawn. If you expend the last charge, roll 1d20. On a 1, a swarm of insects consumes and destroys the staff, then disperses.
This staff has 10 charges.
Insect Cloud. While holding the staff , you can take a Magic action and expend 1 charge to cause a swarm of harmless flying insects to fill a 30-foot Emanation originating
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
Monsters
Monster Manual
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. 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
Monsters
Monster Manual
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. 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
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
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
Temporary Hit Points.Beaks. Melee Attack Roll: +4;{"diceNotation":"1d20+4", "rollType":"to hit", "rollAction":"Beaks"}, reach 5 ft. Hit: 5 (1d6 + 2);{"diceNotation":"1d6+2", "rollType":"damage
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
Temporary Hit Points.Bites. Melee Attack Roll: +4;{"diceNotation":"1d20+4", "rollType":"to hit", "rollAction":"Bites"}, reach 5 ft. Hit: 5 (2d4);{"diceNotation":"2d4", "rollType":"damage", "rollAction
Monsters
Monster Manual
Multiattack. The bulette makes two Bite attacks.
Bite. Melee Attack Roll: +7;{"diceNotation":"1d20+7", "rollType":"to hit", "rollAction":"Bite"}, reach 5 ft. Hit: 17 (2d12 + 4);{"diceNotation":"2d12
+4", "rollType":"damage", "rollAction":"Bite", "rollDamageType":"Piercing"} Piercing damage.
Deadly Leap. The bulette spends 5 feet of movement to jump to a space within 15 feet that contains one or
Magic Items
Dungeon Master’s Guide
. Roll 1d4 to determine the creature: on a 1, a Camel; on a 2, a Constrictor Snake; on a 3, an Elephant; on a 4, a Mule.
86–90
A Hostile Swarm of Bats flies out of the hat, occupies your space
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
roll it makes during the current turn. If that attack hits, the target takes an extra 28 (8d6);{"diceNotation":"8d6", "rollType":"damage", "rollAction":"Deadly Aim", "rollDamageType":"Poison"} Poison damage.
Attack Roll: +9;{"diceNotation":"1d20+9", "rollType":"to hit", "rollAction":"Scimitar"}, reach 5 ft. Hit: 12 (2d6 + 5);{"diceNotation":"2d6+5", "rollType":"damage", "rollAction":"Scimitar", "rollDamageType
Monsters
Monster Manual
the end of its next turn. While bewildered, the target subtracts 1d4;{"diceNotation":"1d4", "rollType":"roll", "rollAction":"Mired"} from its saving throws.
Magic Resistance. The animal lord has
Roll: +13;{"diceNotation":"1d20+13", "rollType":"to hit", "rollAction":"Rend"}, reach 5 ft. Hit: 14 (2d6 + 7);{"diceNotation":"2d6+7", "rollType":"damage", "rollAction":"Rend", "rollDamageType
Monsters
Monster Manual
, the target subtracts 1d4;{"diceNotation":"1d4", "rollType":"roll", "rollAction":"Mired"} from its saving throws.
Magic Resistance. The animal lord has Advantage on saving throws against spells and
other magical effects.Multiattack. The animal lord makes two attacks, using Rend or Radiant Ray in any combination, and uses Animal Spirit.
Rend. Melee Attack Roll: +13;{"diceNotation":"1d20+13
Magic Items
Dungeon Master’s Guide
roll for a spell you cast against a Fiend, you use the maximum possible result instead of rolling.
Random Properties. The Artifact has the following random properties (see “Artifacts” in
those hours pass, anyone who opens the book’s remaining binding is transported to a nascent layer of the Abyss that lies hidden within the book. At the heart of this deadly, semisentient domain
Monsters
Stranger Things: Welcome to the Hellfire Club
Tiny rat. The swarm can’t regain Hit Points.Bite. Melee Attack Roll: +4, Reach 5 ft. Hit: 6 (2d4 + 2);{"diceNotation":"2d4+2", "rollType":"damage", "rollAction":"Bite", "rollDamageType":"Piercing
"} Piercing damage or 1d4+2;{"diceNotation":"1d4+2", "rollType":"roll", "rollAction":"Bite"} Piercing damage if the swarm is Bloodied.Slinking Vermin Befouled by MagicBludgeoning, Piercing, Slashing
Monsters
Dungeon Masters: Ravenloft Play-Along Pack
, 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.Swarming Bites (Swarm Form Only). Melee Attack Roll
Magic Resistance. The gremishka has Advantage on saving throws against spells and other magical effects.
Swarm (Swarm Form Only). The swarm can occupy another creature’s space and vice versa
Monsters
Dungeon Masters: Ravenloft Play-Along Pack
Magic Resistance. The gremishka has Advantage on saving throws against spells and other magical effects.Bite (Individual Form Only). Melee Attack Roll: +4;{"diceNotation":"1d20+4", "rollType":"to hit
. Response: The gremishka regains 15 Hit Points, then becomes a Swarm of Gremishkas (DMR);Medium swarm of Tiny creatures.Gremishkas are magically unstable creations of misguided magic-users. These wildly
Monsters
Dungeon Masters: Zombie Clot Play-Along Pack
Swarm. The swarm can occupy another creature’s space and vice versa, and it can move through any opening large enough for a Tiny chunk of flesh. The swarm can’t regain Hit Points or gain
Temporary Hit Points.Rotten Flesh. Melee Attack Roll: +4;{"diceNotation":"1d20+4", "rollType":"to hit", "rollAction":"Rotten Flesh"}, reach 5 ft. Hit: 9 (2d6 + 2);{"diceNotation":"2d6+2", "rollType
Monsters
Eberron: Forge of the Artificer
Fey Ancestry. Magic can’t put the stingblade to sleep.Stingblade. Melee Attack Roll: +4;{"diceNotation":"1d20+4", "rollType":"to hit", "rollAction":"Stingblade"}, reach 5 ft. Hit: 5 (1d6 + 2
", "rollDamageType":"Poison"} Poison damage.
Boomerang. Ranged Attack Roll: +4;{"diceNotation":"1d20+4", "rollType":"to hit", "rollAction":"Boomerang"}, reach 30/120 ft. Hit: 7 (2d4 + 2
Staff of Swarming Insects
Legacy
This doesn't reflect the latest rules and lore.
Learn More
Magic Items
Basic Rules (2014)
This staff has 10 charges and regains 1d6 + 4 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, a swarm of insects consumes and destroys the staff, then disperses
charges).
Insect Cloud. While holding the staff, you can use an action and expend 1 charge to cause a swarm of harmless flying insects to spread out in a 30-foot radius from you. The insects remain
monsters
Swarm. The swarm can occupy another creature’s space and 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.Infestation. Melee Attack Roll: +4;{"diceNotation":"1d20+4", "rollType":"to hit", "rollAction":"Infestation"}, reach 5 ft. Hit: 12 (4d4 + 2);{"diceNotation":"4d4+2", "rollType":"damage
Swarm of Rot Grubs
Legacy
This doesn't reflect the latest rules and lore.
Learn More
Monsters
Volo's Guide to Monsters
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
;{"diceNotation":"1d4","rollType":"roll","rollAction":"Bites"} rot grubs. At the start of each of the target's turns, the target takes 1d6;{"diceNotation":"1d6","rollType":"damage","rollAction":"Bites
monsters
Monster Manual
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. 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
Magic Items
The Book of Many Things
The cards of this deck shimmer around the edges. While holding this deck, you can use the following properties:
Deadly Deal. As an action, you can use this deck to make a ranged spell attack by
throwing a spectral card and using Dexterity for the attack roll. The card has a range of 120 feet and deals 1d8 force damage on a hit.
Spray of Cards. As an action, you can shuffle the deck and cast the
Monsters
Van Richten’s Guide to Ravenloft
respond to sinister forces at work in a land. As nefarious powers grip an area, populations of maggots, scarabs, and similar scavenging insects explode and become aggressive predators. Roll on the Swarm
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
Monsters
Candlekeep Mysteries
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
succeed on a DC 15 Wisdom (Perception) check to discern that the swarm is animate.
Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening
Monsters
Guildmasters’ Guide to Ravnica
medusa has advantage on attack rolls against any creature that is surprised, and it deals an extra 10 (3d6);{"diceNotation":"3d6","rollType":"roll","rollAction":"Surprise Attack"} damage each time it hits
harmless.
This deadly gaze attack gives medusas a degree of power among the Golgari that is out of proportion with their small numbers. Medusas command a significant share of the guild's smaller cells
, 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.Swarming Bites (Swarm Form Only). Melee Attack Roll
Magic Resistance. The gremishka has Advantage on saving throws against spells and other magical effects.
Swarm (Swarm Form Only). The swarm can occupy another creature’s space and vice versa
monsters
. Melee Attack Roll: +5;{"diceNotation":"1d20+5", "rollType":"to hit", "rollAction":"Claw"}, reach 5 ft. Hit: 10 (2d6 + 3);{"diceNotation":"2d6+3", "rollType":"damage", "rollAction":"Claw
", "rollDamageType":"Slashing"} Slashing damage.
Proboscis. Melee Attack Roll: +5;{"diceNotation":"1d20+5", "rollType":"to hit", "rollAction":"Proboscis"}, reach 5 ft. Hit: 5 (1d4 + 3);{"diceNotation":"1d4+3
Monsters
Fizban's Treasury of Dragons
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
succeed on a DC 18 Intelligence (Investigation) check to discern that the swarm is animate.
Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through
Monsters
Tales from the Yawning Portal
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
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
monsters
Skeletonize. If the swarm starts its turn in the same space as a Large or smaller corpse, the corpse is destroyed, leaving behind only what it was wearing or carrying.
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.Ravenous