both before drops cube response

Octopus

Monsters Monster Manual

while underwater. Response: The octopus releases ink that fills a 5-foot Cube centered on itself, and the octopus moves up to its Swim Speed. The Cube is Heavily Obscured for 1 minute or until a strong current or similar effect disperses the ink.

Giant Octopus

Monsters Monster Manual

while underwater. Response: The octopus releases ink that fills a 10-foot Cube centered on itself, and the octopus moves up to its Swim Speed. The Cube is Heavily Obscured for 1 minute or until a strong current or similar effect disperses the ink.

Giant Squid

Monsters Monster Manual

straight toward itself.Ink Cloud (1/Day). Trigger: The squid takes damage while underwater. Response: The squid releases ink that fills a 15-foot Cube centered on itself, and the squid moves up to its Swim

Speed. The Cube is Heavily Obscured for 1 minute or until a strong current or similar effect disperses the ink.

Rust Monster

Monsters Monster Manual

5 feet of itself that isn’t being worn or carried. The touch destroys a 1-foot Cube of the object.Reflexive Antennae. Trigger: An attack roll hits the rust monster. Response: The rust monster uses Antennae.

Beholder Zombie

Monsters Monster Manual

save, the zombie drops to 1 Hit Point instead.Multiattack. The zombie uses Eye Rays twice. Bite. Melee Attack Roll: +5;{"diceNotation":"1d20+5", "rollType":"to hit", "rollAction":"Bite"}, reach 5 ft

", "rollDamageType":"Force"} Force damage. If the target is a nonmagical object or a creation of magical force, a 10-foot Cube of it disintegrates into dust. Success: Half damage. Failure or Success: If the target is a creature and this damage reduces it to 0 Hit Points, it disintegrates into dust. Poison

Horn of Valhalla

Magic Items Dungeon Master’s Guide

You can take a Magic action to blow this horn. In response, warrior spirits from the plane of Ysgard appear in unoccupied spaces within 60 feet of you. Each spirit uses the Berserker stat block and

returns to Ysgard after 1 hour or when it drops to 0 Hit Points. The spirits look like living, breathing warriors, and they have Immunity to the Charmed and Frightened conditions. Once you use the horn

Arch-hag

Monsters Monster Manual

spells and other magical effects. Spiteful Escape. When the hag drops to 0 Hit Points, it dies only if it is within 30 feet of its anathema (a thing the DM chooses as the hag’s most hated thing

). Otherwise, the hag drops to 1 Hit Point and teleports to a harmless demiplane, and it can’t return to the plane it left for 2d6;{"diceNotation":"2d6", "rollType":"roll", "rollAction":"Spiteful

Summon Construct

Spells Player’s Handbook

it drops to 0 Hit Points or when the spell ends. The creature is an ally to you and your allies. In combat, the creature shares your Initiative count, but it takes its turn immediately after yours

spell’s level Bludgeoning damage. Reactions Berserk Lashing (Clay Only). Trigger: The spirit takes damage from a creature. Response: The spirit makes a Slam attack against that creature if

Hat of Many Spells

Magic Items Dungeon Master’s Guide

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

appears in an unoccupied space as close to you as possible. The creature isn’t under your control and acts as it normally would, and it disappears after 1 hour or when it drops to 0 Hit Points

Summon Fey

Spells Player’s Handbook

. The creature resembles a Fey creature of your choice marked by the chosen mood, which determines certain details in its stat block. The creature disappears when it drops to 0 Hit Points or when the

10 feet of itself. Failure: The target is Charmed by you and the spirit for 1 minute or until the target takes any damage. Tricksy. The spirit fills a 10-foot Cube within 5 feet of it with magical Darkness, which lasts until the end of its next turn.

Vampire Warden

Monsters Astarion's Book of Hungers

damage if it starts its turn in sunlight. While in sunlight, it has Disadvantage on attack rolls and ability checks. Immobile Restoration. If the vampire drops to 0 Hit Points while it doesn’t

).Resilient Flesh. Trigger: The vampire is hit by a melee attack roll from an attacker the vampire can see. Response: The vampire reduces the damage it takes from the attack by 11 (2d6 + 4);{"diceNotation

Valindra Shadowmantle

Monsters Forgotten Realms: Adventures in Faerûn

, Prestidigitation 2/Day Each: Animate Dead, Plane Shift 1/Day Each: Cone of Cold (level 8 version), Finger of Death, Power Word Kill, ScryingProtective Magic. Valindra casts Counterspell or Shield in response

ability as Spellcasting. The spell lasts until Valindra drops to 30 Hit Points or fewer or uses her Life-Rending Gaze Legendary Action. Intelligence (Investigation) checks made to discern her true appearance are made with Disadvantage.

Rust Monster Legacy

Monsters Basic Rules (2014)

dealing damage, the weapon takes a permanent and cumulative −1 penalty to damage rolls. If its penalty drops to −5, the weapon is destroyed. Nonmagical ammunition made of metal that hits the

of it. If the object isn't being worn or carried, the touch destroys a 1-foot cube of it. If the object is being worn or carried by a creature, the creature can make a DC 11 Dexterity saving throw to

Oddlewin

Monsters The Book of Many Things

conjures magical cards that slash at the air in a 5-foot cube within 60 feet of Oddlewin until the start of Oddlewin’s next turn. A creature that starts its turn in the cube or that enters that

one of the following spells, using Charisma as the spellcasting ability (spell save DC 12): At will: Mage Hand, Tasha's Hideous LaughterReversal of Fortune. In response to another creature dealing

Beholder Zombie Legacy

Monsters Monster Manual (2014)

success, the zombie drops to 1 hit point instead.Bite. Melee Weapon Attack: +3;{"diceNotation":"1d20+3","rollType":"to hit","rollAction":"Bite"} to hit, reach 5 ft., one target. Hit: 14 (4d6

saving throw. If the target is a Huge or larger nonmagical object or creation of magical force, this ray disintegrates a 10-foot cube of it.Poison

Barbatos

Monsters Infernal Machine Rebuild

Rust Monster Cloak. Any nonmagical weapon made of metal that hits Barbatos corrodes. After dealing damage, the weapon takes a permanent and cumulative −1 penalty to damage rolls. If its penalty drops

carried, the touch destroys a 1-foot cube of it. If the object is being worn or carried by a creature, the creature can make a DC 12 Dexterity saving throw to avoid Barbatos's touch. If the object

Nathair's Mischief

Spells Fizban's Treasury of Dragons

until the start of your next turn. A giggling creature is incapacitated and uses all its movement to move in a random direction. 4 Drops of molasses hover in the cube, making it difficult terrain until the start of your next turn.

You fill a 20-foot cube you can see within range with fey and draconic magic. Roll on the Mischievous Surge table to determine the magical effect produced, and roll again at the start of each of your

White Maw

Monsters Tales from the Yawning Portal

takes a permanent and cumulative −1 penalty to damage rolls. If its penalty drops to −5, the weapon is destroyed. Nonmagical ammunition made of metal that hits White Maw is destroyed after

dealing damage. White Maw can eat through 2-inch-thick, nonmagical metal in 1 round. False Appearance. While White Maw remains motionless, it is indistinguishable from white stone. Killer Response

Artus Cimber

Monsters Tomb of Annihilation

temperature in a 120-foot-radius sphere centered on a point he can see within 300 feet of him. The temperature in that area drops 20 degrees per minute, to a minimum of −30 degrees Fahrenheit. Frost and

ice begin to form on surfaces once the temperature drops below 32 degrees. This effect is permanent unless Artus uses the ring to end the effect as an action, at which point the temperature in the area

Conjure Elemental Legacy

Spells Basic Rules (2014)

You call forth an elemental servant. Choose an area of air, earth, fire, or water that fills a 10-foot cube within range. An elemental of challenge rating 5 or lower appropriate to the area you chose

appears in an unoccupied space within 10 feet of it. For example, a fire elemental emerges from a bonfire, and an earth elemental rises up from the ground. The elemental disappears when it drops to 0

Geryon Legacy

Monsters Mordenkainen’s Tome of Foes

become poisoned until it finishes a short or long rest. The target's hit point maximum is reduced by an amount equal to half the poison damage it takes. If its hit point maximum drops to 0, it dies

from the ground at a point he can see within 120 feet of him. The cold fills a cube, 10 feet on each side, centered on that point. Each creature in that area must succeed on a DC 21 Constitution saving

Priest of Osybus (Ectoplasmic)

Monsters Van Richten’s Guide to Ravenloft

which the creature is covered by ectoplasm. Tattoo of Osybus. If the priest drops to 0 hit points, roll on the Boons of Undeath table for the boon the priest receives. The priest dies if it receives

slime to make itself look and feel like any creature that is Medium or Small, while retaining its game statistics. This transformation lasts for 8 hours or until the priest drops to 0 hit

Ring of Winter

Magic Items Tomb of Annihilation

and use the ring to lower the temperature in a 120-foot-radius sphere centered on a point you can see within 300 feet of you. The temperature in that area drops 20 degrees per minute, to a minimum of

–30 degrees Fahrenheit. Frost and ice begin to form on surfaces once the temperature drops below 32 degrees. This effect is permanent unless you use the ring to end it as an action, at which

Geryon (Summoner Variant) Legacy

Monsters Mordenkainen’s Tome of Foes

become poisoned until it finishes a short or long rest. The target's hit point maximum is reduced by an amount equal to half the poison damage it takes. If its hit point maximum drops to 0, it dies

he can see within 120 feet of him. The cold fills a cube, 10 feet on each side, centered on that point. Each creature in that area must succeed on a DC 21 Constitution saving throw or take 28 (8d6

Arasta

Monsters Mythic Odysseys of Theros

":"recharge","rollAction":"Web of Hair"}. Arasta unleashes her hair in the form of webbing that fills a 30-foot cube next to her. The web is difficult terrain, its area is lightly obscured, and it lasts for 1

5-foot cube of the web is destroyed if it takes at least 20 fire damage from a spell or other magical source on a single turn.Arasta can take 3 legendary actions, choosing from the options below

Priest of Osybus (Spectral)

Monsters Van Richten’s Guide to Ravenloft

":"force"} force damage if it ends its turn inside a creature or an object. Tattoo of Osybus. If the priest drops to 0 hit points, roll on the Boons of Undeath table for the boon the priest receives

wide. In response, the Ulmist Inquisition and the then-mortal Count Strahd von Zarovich faced the lich in battle. Their bravery would have been for naught if Osybus’s disciples hadn’t

Priest of Osybus (Vampiric)

Monsters Van Richten’s Guide to Ravenloft

10 feet. Tattoo of Osybus. If the priest drops to 0 hit points, roll on the Boons of Undeath table for the boon the priest receives. The priest dies if it receives a boon it already has. If it

as their master did and to cheat death and become undead horrors. The threat posed by Osybus and his disciples raised alarms far and wide. In response, the Ulmist Inquisition and the then-mortal Count

Priest of Osybus (Dread)

Monsters Van Richten’s Guide to Ravenloft

frightened of the priest until the start of the creature’s next turn. Tattoo of Osybus. If the priest drops to 0 hit points, roll on the Boons of Undeath table for the boon the priest receives. The

response, the Ulmist Inquisition and the then-mortal Count Strahd von Zarovich faced the lich in battle. Their bravery would have been for naught if Osybus’s disciples hadn’t betrayed him

Priest of Osybus

Monsters Van Richten’s Guide to Ravenloft

Tattoo of Osybus. If the priest drops to 0 hit points, roll on the Boons of Undeath table for the boon the priest receives. The priest dies if it receives a boon it already has. If it receives a new

master did and to cheat death and become undead horrors. The threat posed by Osybus and his disciples raised alarms far and wide. In response, the Ulmist Inquisition and the then-mortal Count Strahd

Priest of Osybus (Blazing)

Monsters Van Richten’s Guide to Ravenloft

): blur, flaming sphere 3rd level (1 slot): fireball Tattoo of Osybus. If the priest drops to 0 hit points, roll on the Boons of Undeath table for the boon the priest receives. The priest dies if it

threat posed by Osybus and his disciples raised alarms far and wide. In response, the Ulmist Inquisition and the then-mortal Count Strahd von Zarovich faced the lich in battle. Their bravery would have

Priest of Osybus (Deathly)

Monsters Van Richten’s Guide to Ravenloft

Deathly Boon. It can cast animate dead and create undead once per day each, using Intelligence as the spellcasting ability. Tattoo of Osybus. If the priest drops to 0 hit points, roll on the Boons

cheat death and become undead horrors. The threat posed by Osybus and his disciples raised alarms far and wide. In response, the Ulmist Inquisition and the then-mortal Count Strahd von Zarovich

Geryon (Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

innumerable times. Currently, Levistus claims lordship over Stygia, but he has been trapped in an enormous block of ice at the command of Asmodeus. In response, Geryon is marshaling his followers, hoping to

ground at a point he can see within 120 feet of him. The cold fills a cube, 10 feet on each side, centered on that point. Each creature in that area must succeed on a DC 21 Constitution saving throw

Geryon

Monsters Mordenkainen Presents: Monsters of the Multiverse

times. Currently, Levistus claims lordship over Stygia, but he has been trapped in an enormous block of ice at the command of Asmodeus. In response, Geryon is marshaling his followers, hoping to use this

at a point he can see within 120 feet of him. The cold fills a cube, 10 feet on each side, centered on that point. Each creature in that area must succeed on a DC 21 Constitution saving throw or take

Nathair's Mischief

Compendium - Sources->Dungeons & Dragons->Fizban's Treasury of Dragons

giggling creature is incapacitated and uses all its movement to move in a random direction. 4 Drops of molasses hover in the cube, making it difficult terrain until the start of your next turn.

Nathair’s Mischief 2nd-Level Illusion Casting Time: 1 action Range: 60 feet Components: S, M (a piece of crust from an apple pie) Duration: Concentration, up to 1 minute You fill a 20-foot cube you

Summon Fey Legacy

Spells Tasha’s Cauldron of Everything

, Mirthful, or Tricksy. The creature resembles a fey creature of your choice marked by the chosen mood, which determines one of the traits in its stat block. The creature disappears when it drops to 0 hit

make a Wisdom saving throw against your spell save DC. Unless the save succeeds, the target is charmed by you and the fey for 1 minute or until the target takes any damage. Tricksy. The fey can fill a 5-foot cube within 5 feet of it with magical darkness, which lasts until the end of its next turn.

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