barriers breathe diffusing continue regain

Swarm of Piranhas

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 piranha. The swarm can’t regain Hit Points or gain

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

Pipes of the Sewers

Magic Items Dungeon Master’s Guide

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

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

Aboleth

Monsters Monster Manual

the aboleth’s turn. Failure: The target is cursed. Until the curse ends, the target’s skin becomes slimy, the target can breathe air and water, and it can’t regain Hit Points unless

Amphibious. The aboleth can breathe air and water. Eldritch Restoration. If destroyed, the aboleth gains a new body in 5d10;{"diceNotation":"5d10", "rollType":"roll", "rollAction":"Eldritch

Rod of Lordly Might

Magic Items Dungeon Master’s Guide

ram and grants its user a +10 bonus to Strength (Athletics) checks made to break through doors, barricades, and other barriers. Button 6. The rod assumes or remains in its normal form and indicates

4d6 Necrotic damage, and you regain a number of Hit Points equal to half that Necrotic damage. Once used, this property can’t be used again until the next dawn. Paralyze. When you hit a creature

Doppelganger Legacy

Monsters Basic Rules (2014)

magically reads the surface thoughts of one creature within 60 feet of it. The effect can penetrate barriers, but 3 feet of wood or dirt, 2 feet of stone, 2 inches of metal, or a thin sheet of lead

blocks it. While the target is in range, the doppelganger can continue reading its thoughts, as long as the doppelganger's concentration isn't broken (as if concentrating on a spell). While reading the

Swarm of Quippers Legacy

Monsters Basic Rules (2014)

swarm can move through any opening large enough for a Tiny quipper. The swarm can't regain hit points or gain temporary hit points. Water Breathing. The swarm can breathe only underwater.Bite.. Melee

Brain in a Jar

Monsters Icewind Dale: Rime of the Frostmaiden

Detect Sentience. The brain can sense the presence and location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the creature

":"3d8","rollType":"damage","rollAction":"Chill Touch","rollDamageType":"necrotic"} necrotic damage, and the target can’t regain hit points until the start of the brain’s next turn. If the

Sahuagin Hatchling Swarm

Monsters Ghosts of Saltmarsh

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. Water Breathing. The swarm can breathe only

Pipes of the Sewers Legacy

Magic Items Basic Rules (2014)

swarms move toward the music by the shortest available route but aren't under your control otherwise. The pipes regain 1d3 expended charges daily at dawn. Whenever a swarm of rats that isn't under

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

Mummy Lord Legacy

Monsters Basic Rules (2014)

, including ones behind barriers and around corners, can't regain hit points until the end of the mummy lord's next turn. Whirlwind of Sand (Costs 2 Actions). The mummy lord magically transforms into a

","rollDamageType":"necrotic"} necrotic damage. If the target is a creature, it must succeed on a DC 16 Constitution saving throw or be cursed with mummy rot. The cursed target can't regain hit points

Diderius

Monsters Tyranny of Dragons

(Costs 2 Actions). Diderius magically unleashes negative energy. Creatures within 60 feet of him, including ones behind barriers and around corners, can’t regain hit points until the end of his next

"} necrotic damage. If the target is a creature, it must succeed on a DC 16 Constitution saving throw or be cursed with mummy rot. The cursed target can’t regain hit points, and its hit point maximum

Gar Shatterkeel

Monsters Princes of the Apocalypse

Amphibious. Gar can breathe air and water. Legendary Resistance (2/Day). If Gar fails a saving throw, he can choose to succeed instead. Spellcasting. Gar is a 9th-level spellcaster. His

, without using components or a spell slot. He can’t cast the same spell two rounds in a row, but he can continue to concentrate on a spell he previously cast using a lair action. He can take no other

Fungal Servant

Monsters Candlekeep Mysteries

2 Actions). The fungal servant magically unleashes negative energy. Creatures within 60 feet of the fungal servant, including ones behind barriers and around corners, can’t regain hit points

target can’t regain hit points, and its hit point maximum decreases by 10 3d6;{"diceNotation":"3d6","rollType":"roll","rollAction":"Hit Point Reduction"} for every 24 hours that elapse. If the

Black Dragon Mask

Magic Items Tyranny of Dragons

already have immunity to acid damage from another source, whenever you are subjected to acid damage, you take none of that damage and regain a number of hit points equal to half the acid damage dealt

. You can speak and understand Draconic. You also have advantage on any Charisma check you make against black dragons. Legendary Resistance (1/Day). If you fail a saving throw, you can choose to succeed instead. Water Breathing. You can breathe underwater.

Valin Sarnaster

Monsters Candlekeep Mysteries

energy. Creatures within 60 feet of Valin, including ones behind barriers and around corners, can’t regain hit points until the end of Valin’s next turn. Whirlwind of Sand (Costs 2 Actions

succeed on a DC 16 Constitution saving throw or be cursed with mummy rot. The cursed target can’t regain hit points, and its hit point maximum decreases by 10 (3d6);{"diceNotation":"3d6

Green Dragon Mask

Magic Items Tyranny of Dragons

have immunity to poison damage. If you already have immunity to poison damage from another source, whenever you are subjected to poison damage, you take none of that damage and regain a number of hit

you fail a saving throw, you can choose to succeed instead. Water Breathing. You can breathe underwater.

Aboleth Legacy

Monsters Basic Rules (2014)

Amphibious. The aboleth can breathe air and water. Mucous Cloud. While underwater, the aboleth is surrounded by transformative mucus. A creature that touches the aboleth or that hits it with a melee

. The 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

Suffocating Legacy

Rules

rounds equal to its Constitution modifier (minimum of 1 round). At the start of its next turn, it drops to 0 hit points and is dying, and it cannot regain hit points or be stabilized until it can breathe again.

Rod of Lordly Might Legacy

Magic Items Basic Rules (2014)

battering ram and grants its user a +10 bonus to Strength checks made to break through doors, barricades, and other barriers. If you press button 6, the rod assumes or remains in its normal form and

4d6 necrotic damage, and you regain a number of hit points equal to half that necrotic damage. This property can't be used again until the next dawn. Paralyze. When you hit a creature with a melee

Gorka Tharn

Monsters Waterdeep: Dungeon of the Mad Mage

Negative Energy (Costs 2 Actions). The mummy lord magically unleashes negative energy. Creatures within 60 feet of the mummy lord, including ones behind barriers and around corners, can't regain hit

","rollDamageType":"necrotic"} necrotic damage. If the target is a creature, it must succeed on a DC 16 Constitution saving throw or be cursed with mummy rot. The cursed target can't regain hit points

Obzedat Ghost

Monsters Guildmasters’ Guide to Ravnica

ghosts regain spent legendary actions at the start of the turn of the ghost with the highest initiative. Forced Obedience. A target that all of the Obzedat ghosts can see must succeed on a DC 16 Wisdom

let go of the fortunes they amassed in life. Addicted to power and prestige, these patriarchs continue to dominate the guild and accumulate even larger fortunes. Mostly Unanimous. The ghosts of the

Rezmir

Monsters Tyranny of Dragons

Special Equipment. Rezmir has the Black Dragon Mask, Hazirawn, and an insignia of claws (see appendix C for all items). Amphibious. Rezmir can breathe air and water. Cruel Advantage. Once per turn

, it can’t regain hit points for 1 minute. The target can make a DC 15 Constitution saving throw at the end of each of its turns, ending this effect early on itself on a success. Caustic Bolt

Demilich (Variant) Legacy

Monsters Monster Manual (2014)

souls of the insolent intruders to his tomb, magically transferring them to his phylactery. Liches who follow Acererak’s path believe that by becoming free of their bodies, they can continue

antimagic field fills the space of the target, moving with it until initiative count 20 on the next round. The demilich targets any number of creatures it can see within 30 feet of it. No target can regain

Reduced-threat Aboleth

Monsters Tales from the Yawning Portal

Amphibious. The aboleth can breathe air and water. Mucous Cloud. While underwater, the aboleth is surrounded by transformative mucus. A creature that touches the aboleth or that hits it with a melee

. The 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

Mask of the Dragon Queen

Magic Items Tyranny of Dragons

source, whenever you are subjected to damage of that type, you take none of that damage and regain a number of hit points equal to half the damage dealt of that type. Draconic Majesty. While you are

damage to a creature, it can’t take reactions until its next turn. Water Breathing (Black Dragon Mask;Black or Green Dragon Mask Only). You can breathe underwater. Winter’s Fury (White

Suffocating (p. 183)

Compendium - Sources->Dungeons & Dragons->Sage Advice & Errata

). At the start of its next turn, it drops to 0 hit points and is dying, and it can’t regain hit points or be stabilized until it can breathe again.”

Suffocating (p. 183)

Compendium - Sources->Dungeons & Dragons->Sage Advice & Errata

). At the start of its next turn, it drops to 0 hit points and is dying, and it can’t regain hit points or be stabilized until it can breathe again.”

Suffocating (p. 183)

Compendium - Sources->Dungeons & Dragons->Sage Advice & Errata

). At the start of its next turn, it drops to 0 hit points and is dying, and it can’t regain hit points or be stabilized until it can breathe again.”

Suffocating

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

a number of rounds equal to its Constitution modifier (minimum of 1 round). At the start of its next turn, it drops to 0 hit points and is dying, and it can't regain hit points or be stabilized until