before breathe diffusing covering reverts

Fathomer

Monsters Princes of the Apocalypse

fathomer is knocked unconscious or dies, it also reverts to its true form. While in serpent form, the fathomer gains a swimming speed of 40 feet, the ability to breathe underwater, immunity to poison

the serpent form during the change, inaccessible until the fathomer returns to its true form. The fathomer reverts to its true form after 4 hours, unless it can expend another use of this trait. If the

Deep Scion Legacy

Monsters Volo's Guide to Monsters

equipment it is wearing or carrying isn't transformed. The deep scion reverts to its true form if it dies. Amphibious (Hybrid Form Only). The deep scion can breathe air and water.Multiattack. In humanoid

Adult Blue Dragon Legacy

Monsters Basic Rules (2014)

unable to breathe or stand up. A creature can take an action to make a DC 10 Strength check, ending the buried state on a success. A cloud of sand swirls about in a 20-foot-radius sphere centered on a

sinkhole can be spotted from a safe distance with a successful DC 20 Wisdom (Perception) check. Otherwise, the first creature to step on the thin crust covering the sinkhole must succeed on a DC 15 Dexterity

Ancient Bronze Dragon Legacy

Monsters Basic Rules (2014)

Amphibious. The dragon can breathe air and water. Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon can use its Frightful

into its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the dragon's choice). In a new form, the dragon retains its

Adult Bronze Dragon Legacy

Monsters Basic Rules (2014)

Amphibious. The dragon can breathe air and water. Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon can use its Frightful

its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the dragon's choice). In a new form, the dragon retains its

Ancient Blue Dragon Legacy

Monsters Basic Rules (2014)

unable to breathe or stand up. A creature can take an action to make a DC 10 Strength check, ending the buried state on a success. A cloud of sand swirls about in a 20-foot-radius sphere centered on

sinkhole can be spotted from a safe distance with a successful DC 20 Wisdom (Perception) check. Otherwise, the first creature to step on the thin crust covering the sinkhole must succeed on a DC 15

Iymrith

Monsters Storm King's Thunder

. She reverts to her true form if she dies. Any equipment she is wearing or carrying is absorbed or borne by the new form (the dragon’s choice). In storm giant form, Iymrith retains her alignment

","rollType":"damage","rollAction":"Collapsing Ceiling","rollDamageType":"bludgeoning"} bludgeoning damage and be knocked prone and buried. The buried target is restrained and unable to breathe or

Umbraxakar

Monsters Waterdeep: Dungeon of the Mad Mage

Amphibious. The dragon can breathe air and water. Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead. Living Shadow. While in dim light or darkness

reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the dragon's choice). In a new form, the dragon retains its alignment, hit points, Hit

Deep Scion

Monsters Mordenkainen Presents: Monsters of the Multiverse

Amphibious (Hybrid Form Only). The deep scion can breathe air and water.Multiattack. The deep scion makes two Battleaxe attacks, or it makes one Bite attack and two Claw attacks. Battleaxe. Melee

-piscine) or back into its true form, which is humanlike. Its statistics, other than its speed, are the same in each form. Any equipment it is wearing or carrying isn’t transformed. The deep scion reverts to its true form if it dies.

Storm Herald

Monsters Bigby Presents: Glory of the Giants

Amphibious. The herald can breathe air and water. Magic Resistance. The herald has advantage on saving throws against spells and other magical effects.Multiattack. The herald makes one Claw attack

’s sway, and the herald gains fearsome psychic powers to use in advancing its master’s plans. When the herald dies, it reverts to its previous appearance. A storm herald might try to sway

Ancient Gold Dragon Legacy

Monsters Basic Rules (2014)

Amphibious. The dragon can breathe air and water. Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon can use its Frightful

polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is

Adult Gold Dragon Legacy

Monsters Basic Rules (2014)

Amphibious. The dragon can breathe air and water. Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon can use its Frightful

polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed

Lhammaruntosz

Monsters Sleeping Dragon’s Wake

Amphibious. Lhammaruntosz can breathe air and water. Legendary Resistance (3/Day). If Lhammaruntosz fails a saving throw, she can choose to succeed instead. Innate Spellcasting. Lhammaruntosz&rsquo

rating no higher than her own, or back into her true form. She reverts to her true form if she dies. Any equipment she is wearing or carrying is absorbed or borne by the new form (Lhammaruntosz's choice

Yan-C-Bin

Monsters Princes of the Apocalypse

feet of him. The target must make a DC 21 Constitution saving throw. On a failed save, the target drops to 0 hit points and is dying. On a successful save, the target can’t breathe or speak

one of the following effects; he can’t use the same effect two rounds in a row: Yan-C-Bin drops the temperature of the air, covering all surfaces with ice. This effect is identical to the

Forest Crystal Magic

Compendium - Sources->Dungeons & Dragons->Bigby Presents: Glory of the Giants

Forest Crystal Magic The Forest Crystal extends a powerful magical shroud covering the surrounding region. The land surrounding the crystal within a radius of 5 miles is transformed into lush forest

targeting an area of the forest ends the effect in a 20-foot cube for 1 hour if the caster succeeds on a DC 20 ability check using the caster’s spellcasting ability. The affected area reverts to a fetid

Fathomer

Compendium - Sources->Dungeons & Dragons->Ghosts of Saltmarsh

trait. If the fathomer is knocked unconscious or dies, it also reverts to its true form. While in serpent form, the fathomer gains a swimming speed of 40 feet, the ability to breathe underwater

subsumed into the serpent form during the change, inaccessible until the fathomer returns to its true form. The fathomer reverts to its true form after 4 hours, unless it can expend another use of this

E3: Aquarium Car

Compendium - Sources->Dungeons & Dragons->Keys from the Golden Vault

keeps the water from being displaced when either door is opened. Creatures that can’t breathe underwater must hold their breath in the aquarium. Magic instantly dries creatures as they exit the water

immediately reverts to flesh and chastises whoever is responsible. If the aquarium’s plug was removed, the deva replaces it. If any water was drained from the car, the deva uses the decanter to

Deep Scion

Compendium - Sources->Dungeons & Dragons->Ghosts of Saltmarsh

carrying isn’t transformed. The deep scion reverts to its true form if it dies. Amphibious (Hybrid Form Only). The deep scion can breathe air and water. Actions Multiattack. In humanoid form

Storm Herald

Compendium - Sources->Dungeons & Dragons->Bigby Presents: Glory of the Giants

use in advancing its master’s plans. When the herald dies, it reverts to its previous appearance. A storm herald might try to sway other storm giants to its master’s service, while others gather

ft. Challenge 17 (18,000 XP) Proficiency Bonus +6 Amphibious. The herald can breathe air and water. Magic Resistance. The herald has advantage on saving throws against spells and other magical

Sea Hag

Compendium - Sources->Dungeons & Dragons->Monster Manual (2014)

hags are by far the ugliest of all hags, with slimy scales covering their pallid skin. A sea hag’s hair resembles seaweed and covers her emaciated body, and her glassy eyes seem as lifeless as a doll’s

Challenge 2 (450 XP) Amphibious. The hag can breathe air and water. Horrific Appearance. Any humanoid that starts its turn within 30 feet of the hag and can see the hag’s true form must make a DC

Deep Scion

Compendium - Sources->Dungeons & Dragons->Monsters of the Multiverse

can breathe air and water. Actions Multiattack. The deep scion makes two Battleaxe attacks, or it makes one Bite attack and two Claw attacks. Battleaxe. Melee Weapon Attack: +6 to hit, reach 5

, other than its speed, are the same in each form. Any equipment it is wearing or carrying isn’t transformed. The deep scion reverts to its true form if it dies.

The Infernal Machine of Lum the Mad

Magic Items Infernal Machine Rebuild

DM’s determination. 37 Flowers turn to face you as you pass them. Mundane animals can’t look at you. 38 Each time you finish a short rest, you suddenly sprout a covering of

forth, you breathe out intermittent gouts of flame that deal 1d4 fire damage to you. 49 You can cast the daylight spell three times. An evil undead creature that comes within 30 feet of you for the

Deep Scion

Compendium - Sources->Dungeons & Dragons->Volo's Guide to Monsters

isn’t transformed. The deep scion reverts to its true form if it dies. Amphibious (Hybrid Form Only). The deep scion can breathe air and water. Actions Multiattack. In humanoid form, the deep

Kuo-toa

Compendium - Sources->Dungeons & Dragons->Monster Manual (2014)

claws, and an articulated shell covering her shoulders. Blibdoolpoolp was likely invented by a kuo-toa that improved on a broken human statue by adding the limbs and head of a crustacean. In sudden

Challenge 1/4 (50 XP) Amphibious. The kuo-toa can breathe air and water. Otherworldly Perception. The kuo-toa can sense the presence of any creature within 30 feet of it that is invisible or on the

Crushing Wave Cultists

Compendium - Sources->Dungeons & Dragons->Princes of the Apocalypse

Crushing Wave cult. By drawing upon Olhydra’s dark power, they gain the ability to ride sea-creatures that normally wouldn’t be suitable as mounts, and can even breathe underwater and share their

, the knight gains the beast’s senses and ability to breathe underwater. The bonded mount obeys the knight’s commands. If its mount dies, the knight can train a new beast to serve as its bonded mount

Monster Stat Blocks

Compendium - Sources->Dungeons & Dragons->Basic Rules (2014)

Languages Deep Speech, telepathy 120 ft. Challenge 10 (5,900 XP) Amphibious. The aboleth can breathe air and water. Mucous Cloud. While underwater, the aboleth is surrounded by transformative mucus. A

diseased creature can breathe only underwater. Probing Telepathy. If a creature communicates telepathically with the aboleth, the aboleth learns the creature’s greatest desires if the aboleth can see

Metallic Dragons

Compendium - Sources->Dungeons & Dragons->Monster Manual (2014)

no higher than its own, or back into its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the dragon’s choice). In a

., darkvision 120 ft., passive Perception 27 Languages Common, Draconic Challenge 22 (41,000 XP) Amphibious. The dragon can breathe air and water. Legendary Resistance (3/Day). If the dragon fails a

71. Lair of the Sewn Sisters

Compendium - Sources->Dungeons & Dragons->Tomb of Annihilation

Charm. While you have Clay No-Face in your possession, you don’t need to eat, drink, or breathe. These benefits last for 30 days while the doll is in your possession, after which the charm vanishes

hags are a frightful lot: Widow Groat has tarnished gold coins covering her eyes and ants nesting in her skull. The ants serve as her spies, and their presence often portends her arrival. She carries a

Yan-C-Bin

Compendium - Sources->Dungeons & Dragons->Princes of the Apocalypse

a successful save, the target can’t breathe or speak until the start of its next turn. Yan-C-Bin’s Lair Yan-C-Bin dwells in a palace of air on the Elemental Plane of Air. In his palace and in air

initiative ties), Yan-C-Bin takes a lair action to cause one of the following effects; he can’t use the same effect two rounds in a row: Yan-C-Bin drops the temperature of the air, covering all surfaces

Far Realm Cysts

Compendium - Sources->Dungeons & Dragons->Tales from the Yawning Portal->a5

target’s speed is reduced by 15 feet, and others make attack rolls against the target with advantage. 8 Sleep. The target falls unconscious until the start of its next turn. Slime. Covering the rough

to the flow of slime in and around it. A creature that falls into a sinkhole is restrained in the narrow bottom and submerged in slime, unable to breathe. It takes a successful DC 15 Strength check or

Court of Orestes Locations

Compendium - Sources->Dungeons & Dragons->Mythic Odysseys of Theros

covering its body granting it advantage on Dexterity (Stealth) checks made to hide. The amphisbaena targets the first creature to approach the stone slab. Once the serpent is dealt with, anyone who

Returned are tritons and, in addition to the statistics of a normal Returned sentry, each can breathe water and has a swim speed of 30 feet. Decades ago, anticipating Varyas’s mission, Phenax sent

Sorcerer Subclasses

Compendium - Sources->Dungeons & Dragons->Player’s Handbook

Swim Speed equal to twice your Speed, and you can breathe underwater. Gills grow from your neck or flare behind your ears, and your fingers become webbed or you grow wriggling cilia. Glistening Flight

entirely in the Cube are repaired instantly. Dispel. Every spell of level 6 and lower ends on creatures and objects of your choice in the Cube. Draconic Sorcery Breathe the Magic of Dragons Your innate

Supernatural Regions

Compendium - Sources->Dungeons & Dragons->Tasha’s Cauldron of Everything

restrained in this way by using an action to make a successful DC 14 Strength or Dexterity check (its choice). 64–72 Creatures in the region can’t leave it and find themselves covering the same ground over

within 10 feet of the party and bursts, covering the ground with ichor in a 10-foot square centered on it. This region is affected by the grease spell (save DC 13) for 1 minute. 56–60 The ground opens up

Chromatic Dragons

Compendium - Sources->Dungeons & Dragons->Monster Manual (2014)

dragon can breathe air and water. Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead. Actions Multiattack. The dragon can use its Frightful Presence

ft., passive Perception 21 Languages Common, Draconic Challenge 14 (11,500 XP) Amphibious. The dragon can breathe air and water. Legendary Resistance (3/Day). If the dragon fails a saving

Giants

Compendium - Sources->Dungeons & Dragons->Volo's Guide to Monsters

the same in each form. It reverts to its true form if it dies. Fire Giant Dreadnought The ordning for fire giants emphasizes not just strength but also skill at forgecraft. The foundry is the

60 ft., passive Perception 20 Languages Common, Giant Challenge 16 (15,000 XP) Amphibious. The giant can breathe air and water. Actions Multiattack. The giant makes two Lightning Sword

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