cause wall reduction

Wall of Stone

Spells Player’s Handbook

a panel to 0 Hit Points destroys it and might cause connected panels to collapse at the DM’s discretion. If you maintain your Concentration on this spell for its full duration, the wall becomes permanent and can’t be dispelled. Otherwise, the wall disappears when the spell ends.

A nonmagical wall of solid stone springs into existence at a point you choose within range. The wall is 6 inches thick and is composed of ten 10-foot-by-10-foot panels. Each panel must be contiguous

Control Water

Spells Player’s Handbook

repeat the same effect or choose a different one. Flood. You cause the water level of all standing water in the area to rise by as much as 20 feet. If you choose an area in a large body of water, you

separated water forms a wall to either side. The trench remains until the spell ends or you choose a different effect. The water then slowly fills in the trench over the course of the next round until

Helm of Brilliance

Magic Items Dungeon Master’s Guide

to cause one weapon you are holding to burst into flames. The flames emit Bright Light in a 10-foot radius and Dim Light for an additional 10 feet. The flames are harmless to you and the weapon. When

specified type as a component: Daylight (opal), Fireball (fire opal), Prismatic Spray (diamond), or Wall of Fire (ruby). The gem is destroyed when the spell is cast and disappears from the helm

Wall of Water

Spells Elemental Evil Player's Companion

disadvantage on the attack roll, and fire damage is halved if the fire effect passes through the wall to reach its target. Spells that deal cold damage that pass through the wall cause the area of the wall

You create a wall of water on the ground at a point you can see within range. You can make the wall up to 30 feet long, 10 feet high, and 1 foot thick, or you can make a ringed wall up to 20 feet in

Claugiyliamatar (possessed)

Monsters Divine Contention

(losing initiative ties), the dragon takes a lair action to cause one of the following effects; the dragon can’t use the same effect two rounds in a row: Grasping roots and vines erupt in a 20

uses this lair action again or when the dragon dies. A wall of tangled brush bristling with thorns springs into existence on a solid surface within 120 feet of the dragon. The wall is up to 60 feet long

Claugiyliamatar

Monsters Storm King's Thunder

their lairs with vegetation. Lair Actions On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects; the dragon can’t use the same

check and succeeds. The roots and vines wilt away when the dragon uses this lair action again or when the dragon dies. A wall of tangled brush bristling with thorns springs into existence on a solid

Withers

Monsters Tomb of Annihilation

, expeditious retreat, feather fall, thunderwave 2nd level (3 slots): darkness, hold person, rope trick 3rd level (3 slots): dispel magic, lightning bolt 4th level (3 slots): blight, wall of fire 5th level

damage. The target must succeed on a DC 13 Constitution saving throw or its hit point maximum is reduced by an amount equal to the damage taken. This reduction lasts until the target finishes a long

Hierophant Medusa

Monsters The Book of Many Things

with advantage.Sometimes deeply devout people, usually either Humanoids or medusas, dedicate themselves to a cause and are transformed by a deity or magic into hierophant medusas—beings with

on initiative count 20 on the following round. Sudden Stonework. The medusa creates a wall of stone on a solid surface it can see within the lair. The wall can be up to 60 feet long, 20 feet high

Dybbuk

Monsters Mordenkainen Presents: Monsters of the Multiverse

":"Tentacle"}. This reduction lasts until the target finishes a short or long rest. The target dies if its hit point maximum is reduced to 0. Possess Corpse (Recharge 6);{"diceNotation":"1d6

Corpse. While Possess Corpse is active, the dybbuk makes the corpse do something unnatural, such as vomit blood, twist its head all the way around, or cause a quadruped to move as a biped. Any Beast

Mighty Fortress

Spells Xanathar's Guide to Everything

. The turrets are connected to each other by stone walls that are each 80 feet long, creating an enclosed area. Each wall is 1 foot thick and is composed of panels that are 10 feet wide and 20 feet

tall. Each panel is contiguous with two other panels or one other panel and a turret. You can place up to four stone doors in the fortress’s outer wall. A small keep stands inside the enclosed

Centaur Legacy

Species Guildmasters’ Guide to Ravnica

, until the next wall looms in their path and brings them to a stop. Nature’s Cavalry Centaurs have the upper bodies, down to the waist, of muscular humans, displaying all the human variety of skin

the laboratories of the Simic. Centaurs celebrate life and growth, and the birth of a foal is always cause for festivities. At the same time, they revere the traditions of the past, and among both

Elder Tempest

Monsters Mordenkainen Presents: Monsters of the Multiverse

(Costs 2 Actions). The tempest can cause a bolt of lightning to strike a point on the ground anywhere under its storm. Each creature within 5 feet of that point must make a DC 20 Dexterity saving throw

be flung up to 60 feet in a direction away from the line. If a thrown target collides with an immovable object, such as a wall or floor, the target takes 3 (1d6);{"diceNotation":"1d6","rollType

Halaster Blackcloak

Monsters Waterdeep: Dungeon of the Mad Mage

terrain, polymorph 5th level (3 slots): Bigby's hand, geas, wall of force 6th level (2 slots): chain lightning, globe of invulnerability, programmed illusion 7th level (2 slots): finger of death

(losing initiative ties), Halaster takes a lair action to cause one of the following effects: Halaster targets a volume of unoccupied space or solid stone no larger than four 10-foot cubes within 30

Olhydra

Monsters Princes of the Apocalypse

spells, requiring no material components: At will: wall of ice 3/day: ice storm 1/day: storm of vengeance Legendary Resistance (3/Day). If Olhydra fails a saving throw, she can choose to succeed

solid surface, such as a wall or floor, the creature takes 1d6;{"diceNotation":"1d6","rollType":"damage","rollDamageType":"bludgeoning"} bludgeoning damage for every 10 feet it was flung. Water to Acid

Diderius

Monsters Tyranny of Dragons

magic 4th level (3 slots): fire shield, greater invisibility 5th level (2 slots): cloudkill, wall of stoneMultiattack. Diderius can use his Dreadful Glare and makes one attack with his rotting fist

encountered in its lair has a challenge rating of 16 (15,000 XP). Lair Actions On initiative count 20 (losing initiative ties), the mummy lord takes a lair action to cause one of the following effects

Ringlerun

Monsters The Wild Beyond the Witchlight

","rollDamageType":"lightning"} lightning damage; 5 charges), magic missile (1 charge), ray of enfeeblement (1 charge), or wall of force (5 charges).Ringlerun became an adventurer to better satisfy his craving for

described here. (The other members, who do not appear in this adventure, are busy elsewhere.) Strongheart is always on the lookout for courageous heroes who are willing to devote themselves to a good cause. Only good-aligned characters are allowed to join Valor’s Call.

Lorthuun

Monsters Out of the Abyss

ties), the beholder can take one lair action to cause one of the following effects: A 50-foot square area of ground within 120 feet of the beholder becomes slimy; that area is difficult terrain until

starts its turn within 10 feet of such a wall must succeed on a DC 15 Dexterity saving throw or be grappled. Escaping requires a successful DC 15 Strength (Athletics) or Dexterity (Acrobatics) check. An

Geryon (Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

long rest. The target’s hit point maximum is reduced by an amount equal to half the poison damage taken. This reduction lasts until the poisoned condition is removed. The target dies if its hit

: alter self (can become Medium when changing his appearance), detect magic, ice storm, invisibility (self only), locate object, suggestion, wall of ice 1/day: banishment Teleport. Geryon magically

Geryon

Monsters Mordenkainen Presents: Monsters of the Multiverse

long rest. The target’s hit point maximum is reduced by an amount equal to half the poison damage taken. This reduction lasts until the poisoned condition is removed. The target dies if its hit

: alter self (can become Medium when changing his appearance), detect magic, ice storm, invisibility (self only), locate object, suggestion, wall of ice 1/day: banishment Teleport. Geryon magically

Valin Sarnaster

Monsters Candlekeep Mysteries

","rollType":"roll","rollAction":"Hit Point Reduction"} for every 24 hours that elapse. If the curse reduces the target’s hit point maximum to 0, the target dies, and its body turns to dust. The curse

Sarnaster’s Lair Valin can use her lair actions in any area of the tomb. Lair Actions On initiative count 20 (losing initiative ties), Valin takes a lair action to cause one of the following

Dyrrn

Monsters Eberron: Rising from the Last War

within the Palace of Sinew, Dyrrn can invoke the ambient magic to take lair actions. On initiative count 20 (losing initiative ties), Dyrrn can take a lair action to cause one of the following effects; it

each time it fails the saving throw for this lair action. The target dies if its Intelligence score is reduced to 0. The reduction lasts until the target finishes a short or long rest. Regional

Demogorgon Legacy

Monsters Out of the Abyss

"} bludgeoning damage. If the target is a creature, it must succeed on a DC 23 Constitution saving throw or its hit point maximum is reduced by an amount equal to the damage taken. This reduction lasts

bulk of this palace extends deep underwater, in chill and darkened caverns. Lair Actions On initiative count 20 (losing initiative ties), Demogorgon can take a lair action to cause one of the

Ogrémoch

Monsters Princes of the Apocalypse

innately cast the following spells, requiring no material components: At will: meld into stone, move earth, wall of stone Legendary Resistance (3/Day). If Ogrémoch fails a saving throw, he can

count 20 (losing initiative ties), Ogrémoch uses his lair action to cause one of the following effects: A 10-foot-radius area of rocky or earthy ground within 60 feet of Ogrémoch turns

Baphomet Legacy

Monsters Out of the Abyss

each: dispel magic, dominate beast, hunter's mark, maze, wall of stone 1/day each: teleport Labyrinthine Recall. Baphomet can perfectly recall any path he has traveled, and he is immune to the maze

, populated by minotaur;minotaurs, goristro;goristros, and quasit;quasits. Lair Actions On initiative count 20 (losing initiative ties), Baphomet can take a lair action to cause one of the following

Artus Cimber

Monsters Tomb of Annihilation

following properties while attuned to the dagger, provided he has the weapon drawn: Cause a blue gem set into the dagger’s pommel to shed bright light in a 20-foot radius and dim light for an

spikes are made of ice), or wall of ice (2 charges). Artus can expend the necessary number of charges and use the ring to create either an inanimate ice object (2 charges) or an animated ice creature (4

Boros Legionnaire

Backgrounds Guildmasters’ Guide to Ravnica

, inspired by the example of the angels, moved by the plight of the downtrodden, and devoted to the cause of justice. Or you could be a cynic in the ranks, perhaps because you reluctantly followed in the

;sacred flame 1st guiding bolt, heroism 2nd aid, scorching ray 3rd beacon of hope, blinding smite 4th death ward, wall of fire 5th flame strike

Imix

Monsters Princes of the Apocalypse

hit with spell attacks). He can innately cast the following spells, requiring no material components: At will: fireball, wall of fire 3/day each: fire storm, haste, teleport Magic Resistance. Imix

(such as the Weeping Colossus in chapter 5). On initiative count 20 (losing initiative ties), Imix uses his lair action to cause one of the following effects: Any fires in the lair flare up

Ring of Winter

Magic Items Tomb of Annihilation

Guide). If it succeeds, the ring compels its wearer to cause undue harm to everyone and everything around it, in a cold-hearted attempt to incur the wrath of enemies and bring about the wearer&rsquo

freezing sphere (3 charges), sleet storm (1 charge), spike growth (1 charge; the spikes are made of ice), or wall of ice (2 charges). You can expend the necessary

Adult Topaz Dragon

Monsters Fizban's Treasury of Dragons

actions at the start of its turn. Claw. The dragon makes one Claw attack. Psionics (Costs 2 Actions). The dragon uses Psychic Step or Spellcasting. Essential Reduction (Costs 3 Actions). The dragon

", "rollType":"damage", "rollAction":"Essential Reduction", "rollDamageType":"necrotic"} necrotic damage. If this damage reduces the target to 0 hit points, it crumbles to dust.Decay and despair are bound up in

Ancient Topaz Dragon

Monsters Fizban's Treasury of Dragons

spent legendary actions at the start of its turn. Claw. The dragon makes one Claw attack. Psionics (Costs 2 Actions). The dragon uses Psychic Step or Spellcasting. Essential Reduction (Costs 3

);{"diceNotation":"9d8", "rollType":"damage", "rollAction":"Essential Reduction", "rollDamageType":"necrotic"} necrotic damage. If this damage reduces the target to 0 hit points, it crumbles to dust.Decay and

Adult Crystal Dragon

Monsters Fizban's Treasury of Dragons

antics sometimes cause avalanches that threaten nearby villages. 5 An adult crystal dragon enjoys shaping the ice and snow near a den of troll;trolls into a labyrinth and watching the trolls try to

Passage. The dragon can open a passage through a wall of ice or snow that is up to 5 feet thick, creating an opening up to 30 feet wide and high. Starlight’s Gleam. The dragon chooses a point it

Wall of Stone Legacy

Spells Basic Rules (2014)

. The wall is an object made of stone that can be damaged and thus breached. Each panel has AC 15 and 30 hit points per inch of thickness. Reducing a panel to 0 hit points destroys it and might cause

A nonmagical wall of solid stone springs into existence at a point you choose within range. The wall is 6 inches thick and is composed of ten 10-foot- by-10-foot panels. Each panel must be contiguous

Ancient Green Dragon Legacy

Monsters Basic Rules (2014)

initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects; the dragon can’t use the same effect two rounds in a row: Grasping roots and

away when the dragon uses this lair action again or when the dragon dies. A wall of tangled brush bristling with thorns springs into existence on a solid surface within 120 feet of the dragon. The wall

Adult White Dragon Legacy

Monsters Basic Rules (2014)

breath. Lair Actions On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects; the dragon can’t use the same effect two rounds in

dragon creates an opaque wall of ice on a solid surface it can see within 120 feet of it. The wall can be up to 30 feet long, 30 feet high, and 1 foot thick. When the wall appears, each creature within

Adult Green Dragon Legacy

Monsters Basic Rules (2014)

initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects; the dragon can’t use the same effect two rounds in a row: Grasping roots and vines

the dragon uses this lair action again or when the dragon dies. A wall of tangled brush bristling with thorns springs into existence on a solid surface within 120 feet of the dragon. The wall is up

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