base being diffusing check regain

Swarm of Insects

Monsters Monster Manual

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

’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

Violet Fungus Necrohulk

Monsters Monster Manual

", "rollDamageType":"Necrotic"} Necrotic damage, and the target has the Poisoned condition until the start of the necrohulk’s next turn. While Poisoned, the target can’t regain Hit Points. Success: Half

of the necrohulk can take an action to make a DC 15 Strength (Athletics) check. On a successful check, the target is no longer grafted and moves to an unoccupied space within 5 feet of the necrohulk.

Control Water

Spells Player’s Handbook

lasts until you choose a different effect or the spell ends. The whirlpool is 5 feet wide at the base, up to 50 feet wide at the top, and 25 feet tall. Any creature in the water and within 25 feet of

takes 2d8 Bludgeoning damage. On a successful save, the creature takes half as much damage. A creature can swim away from the whirlpool only if it first takes an action to pull away and succeeds on a Strength (Athletics) check against your spell save DC.

Mark of Making

Feats Eberron: Forge of the Artificer

Dragonmark Feat (Prerequisite: Eberron Campaign, Can’t Have Another Dragonmark Feat) You gain the following benefits. Artisan’s Intuition.When you make an Intelligence (Arcana) check or

an ability check using Artisan’s Tools, you can roll 1d4 and add the number rolled to the ability check. Spellsmith. You know the Mending cantrip. You also always have the Magic Weapon spell

Mark of Hospitality

Feats Eberron: Forge of the Artificer

Dragonmark Feat (Prerequisite: Eberron Campaign, Can’t Have Another Dragonmark Feat) You gain the following benefits. Ever Hospitable. When you make a Charisma (Persuasion) check or an

ability check using Brewer's Supplies or Cook's Utensils, you can roll 1d4 and add the number rolled to the ability check. Innkeeper’s Magic. You always have the Purify Food and Drink and Unseen

Mark of Storm

Feats Eberron: Forge of the Artificer

) check or an ability check using Navigator's Tools, you can roll 1d4 and add the number rolled to the ability check. Storm’s Boon. You have Resistance to Lightning damage. Storm Magic. You know the

Thunderclap cantrip. When you reach character level 3, you also always have the Gust of Wind spell prepared. You can cast it once without a spell slot, and you regain the ability to cast it in that

Mark of Warding

Feats Eberron: Forge of the Artificer

) check or an ability check using Thieves' Tools, you can roll 1d4 and add the number rolled to the ability check. Wards and Seals. You always have the Alarm and Mage Armor spells prepared. You can cast

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

Magen Handbell

Magic Items Netheril’s Fall

enough for the magen to move to and attack, the magen attacks an object. The magen remains berserk until it disappears, or until a creature holding the handbell takes an Influence action and succeeds on a DC 15 Charisma (Persuasion) check to regain control of the magen.

Mark of Passage

Feats Eberron: Forge of the Artificer

. When you make a Strength (Athletics) or Dexterity (Acrobatics) check, you can roll 1d4 and add the number rolled to the ability check. Magical Passage. You always have the Misty Step spell prepared

. You can cast it 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 it using any spell slots you have. Intelligence, Wisdom, or

Mark of Finding

Feats Eberron: Forge of the Artificer

) check, you can roll 1d4 and add the number rolled to the ability check. Finder’s Magic. You always have the Hunter's Mark spell prepared. You can cast it 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 it using any spell slots you have of the appropriate level. Intelligence, Wisdom, or Charisma is your spellcasting

Mark of Handling

Feats Eberron: Forge of the Artificer

Handling) check, you can roll 1d4 and add the number rolled to the ability check. Primal Connection. You always have the Animal Friendship and Speak with Animals spells prepared. You can cast 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. Intelligence, Wisdom, or

Mark of Healing

Feats Eberron: Forge of the Artificer

Dragonmark Feat (Prerequisite: Eberron Campaign, Can’t Have Another Dragonmark Feat) You gain the following benefits. Medical Intuition. When you make a Wisdom (Medicine) check or an ability

check using a Herbalism Kit, you can roll 1d4 and add the number rolled to the ability check. Healing Touch. You always have the Cure Wounds spell prepared. You can cast it once without a spell slot

Mark of Shadow

Feats Eberron: Forge of the Artificer

(Performance) check, you can roll 1d4 and add the number rolled to the ability check. Shape Shadows. You know the Minor Illusion cantrip. You also always have the Invisibility spell prepared. You can cast

it 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 it using any spell slots you have of the appropriate level. Intelligence

Swarm of Insects (Spiders) Legacy

Monsters Basic Rules (2014)

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 insect. The swarm can't regain hit points or gain temporary hit

points. Spider Climb. The swarm can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check. Web Sense. While in contact with a web, the swarm knows the

Swarm of Campestris

Monsters The Wild Beyond the Witchlight

swarm can move through any opening large enough to accommodate an individual campestri. The swarm can’t regain hit points or gain temporary hit points.Head Butts. Melee Weapon Attack: +0

grows out of the base of its stem and supports it. The mushroom creatures eat salty soil, filter out the salt, and excrete a slippery paste of purified soil (stripped of things nourishing to fungi

Swarm of Cranium Rats

Monsters Mordenkainen Presents: Monsters of the Multiverse

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

rat by its mind flayer creators, bestowing upon the swarm psionic powers. A single cranium rat uses its natural telepathy to communicate hunger, fear, and other base emotions. A swarm of cranium rats

Bearded Devil Legacy

Monsters Basic Rules (2014)

":"piercing"} piercing damage, and the target must succeed on a DC 12 Constitution saving throw or be poisoned for 1 minute. While poisoned in this way, the target can't regain hit points. The target can repeat

":"Glaive"}. Any creature can take an action to stanch the wound with a successful DC 12 Wisdom (Medicine) check. The wound also closes if the target receives magical healing.Fire, PoisonCold; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks that aren't Silvered

Hag of the Fetid Gaze

Monsters Candlekeep Mysteries

imitations with a successful DC 14 Wisdom (Insight) check. Shared Spellcasting. While all three members of the Fetid Gaze are within 30 feet of one another, they can each cast the following spells from

succeed on a DC 20 Intelligence (Investigation) check to discern that the hag is disguised. Invisible Passage. The hag magically turns invisible until she attacks or casts a spell, or until her

Sahuagin Wave Shaper

Monsters Ghosts of Saltmarsh

at least 50 feet square and 25 feet deep, causing a whirlpool to form in the center of the area. The whirlpool forms a vortex that is 5 feet wide at the base, up to 50 feet wide at the top, 25 feet

vortex by succeeding on a DC 14 Strength (Athletics) check. When a creature enters the vortex for the first time on a turn or starts its turn there, it must make a DC 14 Strength saving throw. On a

Swarm of Animated Books

Monsters Candlekeep Mysteries

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

large enough for a 1-foot-tall, 8-inch-wide, 2-inch-thick object. The swarm can’t regain hit points or gain temporary hit points.Book Club. Melee Weapon Attack: +3;{"diceNotation":"1d20+3

Hexton Modron

Monsters Planescape: Adventures in the Multiverse

spell. If the spell is 3rd level or lower, it fails and has no effect. If the spell is 4th level or higher, the hexton makes an Intelligence check (DC 10 + the spell’s level). On a success, the

base modrons—monodrone;monodrones, duodrone;duodrones, tridrone;tridrones, quadrone;quadrones, and pentadrone;pentadrones—the upper-tier hierarch modrons hold leadership positions

Blue Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

remove the gem from an incapacitated slaad. Each try requires 1 minute of uninterrupted work and a successful DC 20 Wisdom (Medicine) check. Each failed attempt deals 22 (4d10);{"diceNotation":"4d10

phage. While infected, the target can't regain hit points, and its hit point maximum is reduced by 10 (3d6);{"diceNotation":"3d6","rollType":"roll","rollAction":"Claw"} every 24 hours. If the disease

Bearded Devil (Summoner Variant) Legacy

Monsters Monster Manual (2014)

":"piercing"} piercing damage, and the target must succeed on a DC 12 Constitution saving throw or be poisoned for 1 minute. While poisoned in this way, the target can't regain hit points. The target can repeat

":"Glaive"}. Any creature can take an action to stanch the wound with a successful DC 12 Wisdom (Medicine) check. The wound also closes if the target receives magical healing. Summon Devil (1/Day). The

Y'demi

Monsters Strixhaven: A Curriculum of Chaos

the target is a creature, it can’t regain hit points until the start of the Y’demi’s next turn. Blood Boil (Recharge 4–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction

(Athletics) check or a DC 13 Dexterity (Acrobatics) check, ending the restrained condition on itself on a success.

Gloves of Soul Catching

Magic Items Candlekeep Mysteries

while wearing these gloves, you can use the gloves to deal an extra 2d10 force damage to the target, and you regain a number of hit points equal to the force damage dealt. Alternatively, instead of

regaining hit points in this way, you can choose to gain advantage on one attack roll, ability check, or saving throw you make before the end of your next turn.

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

another creature's control comes within 30 feet of you while you are playing the pipes, you can make a Charisma check contested by the swarm's Wisdom check. If you lose the contest, the swarm behaves as

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 Hoard Scarabs

Monsters Fizban's Treasury of Dragons

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

any opening large enough for a Tiny hoard scarab;scarab. The swarm can’t regain hit points or gain temporary hit points.Swarm of Bites. Melee Weapon Attack: +5;{"diceNotation":"1d20+5", "rollType

Control Water Legacy

Spells Basic Rules (2014)

. This effect requires a body of water at least 50 feet square and 25 feet deep. You cause a whirlpool to form in the center of the area. The whirlpool forms a vortex that is 5 feet wide at the base

Strength (Athletics) check against your spell save DC. When a creature enters the vortex for the first time on a turn or starts its turn there, it must make a Strength saving throw. On a failed save

Lucky Legacy

Feats Player’s Handbook (2014)

You have inexplicable luck that seems to kick in at just the right moment. You have 3 luck points. Whenever you make an attack roll, an ability check, or a saving throw, you can spend one luck

, ability check, or saving throw. You can also spend one luck point when an attack roll is made against you. Roll a d20, and then choose whether the attack uses the attacker's roll or yours. If more than

Quavilithku Spyder-Fiend

Monsters Vecna: Eve of Ruin

ceilings, without needing to make an ability check. Web Sense. When in contact with a web, the quavilithku knows the exact location of any other creature in contact with the same web. Web Walker. The

condition for 1 minute. While poisoned in this way, a creature can’t regain hit points. A poisoned creature can repeat the saving throw at the end of each of its turns, ending the effect on

Raklupis Spyder-Fiend

Monsters Vecna: Eve of Ruin

, without needing to make an ability check. Web Sense. When in contact with a web, the raklupis knows the exact location of any other creature in contact with the same web. Web Walker. The raklupis

must succeed on a DC 20 Constitution saving throw or have the poisoned condition for 1 minute. While poisoned in this way, a creature has the incapacitated condition and can’t regain hit points. A

Nosferatu

Monsters Van Richten’s Guide to Ravenloft

check. Sunlight Hypersensitivity. The nosferatu takes 20 radiant damage when it starts its turn in sunlight. While in sunlight, it has disadvantage on attack rolls and ability checks. Unusual Nature

Disgorge","rollDamageType":"necrotic"} necrotic damage, and it can’t regain hit points for 1 minute. On a successful save, the creature takes half as much damage with no additional effects.Vicious

Aboleth Legacy

Monsters Basic Rules (2014)

skin becomes translucent and slimy, the creature can’t regain hit points unless it is underwater, and the disease can be removed only by heal or another disease-curing spell of 6th level or higher

aboleth regains spent legendary actions at the start of its turn. Detect. The aboleth makes a Wisdom (Perception) check. Tail Swipe. The aboleth makes one tail attack. Psychic Drain (Costs 2

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

blindsight out to 30 feet for 5 minutes. Dragon Tongue. You can speak and understand Draconic. You also have advantage on any Charisma check you make against green dragons. Legendary Resistance (1/Day). If

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