cause wall rules

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

Forest Master

Monsters Monstrous Compendium Vol. 2: Dragonlance Creatures

carrying, teleports to an unoccupied space within 30 feet that he can see.Said to be older than the trees themselves, the Forest Master is a wise and powerful unicorn who rules over the creatures of

Briars (Recharge 4–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Erupting Briars"}. The Forest Master touches his horn to the earth and causes a 5-foot-tall wall of briars to erupt

Fraternity of Order Law Bender

Monsters Planescape: Adventures in the Multiverse

armor, mage hand, prestidigitationProbability Loophole (3/Day). When the law bender or a creature it can see makes an attack roll, a saving throw, or an ability check, the law bender can cause the roll

to be made with advantage or disadvantage.Members of the Fraternity of Order find and exploit loopholes in the laws of the multiverse. Law benders are magistrates who skirt the rules of probability

Avarice

Monsters Icewind Dale: Rime of the Frostmaiden

charges), or wall of ice (4 charges). The staff regains 1d6 + 4;{"diceNotation":"1d6+4","rollType":"roll","rollAction":"Staff of Frost"} charges daily at dawn. If its last charge is expended, roll a

challenge, even when the odds are clearly stacked against her. Seeing other wizards as a threat, paranoia rules her life. Avarice has been a member of the Arcane Brotherhood for almost two years. She

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

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

Kruthik Hive Lord

Monsters Mordenkainen Presents: Monsters of the Multiverse

":"Acid Spray","rollDamageType":"acid"} acid damage on a failed save, or half as much damage on a successful one.A hive lord rules each kruthik hive. When the hive lord dies, the surviving members of the

warning and avoid areas where many other kruthiks have died. Slaying a sufficient number of kruthiks in one area might cause the remaining hive members to move elsewhere. Although they can feed on

Ythryn Mythallar

Magic Items Icewind Dale: Rime of the Frostmaiden

rest within 30 feet of it, meditating on the mythallar. Up to eight creatures can be attuned to it at one time; otherwise, the Ythryn mythallar follows the attunement rules in the Dungeon Master&rsquo

of existence as the Ythryn mythallar, you can use an action to cause it to fly in any direction you choose at a speed of 30 feet. All matter within 500 feet of the device moves with it. The Ythryn

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

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

, the Horned King and the Prince of Beasts. He rules over minotaur;minotaurs and others with savage hearts. He is worshiped by those who want to break the confines of civility and unleash their bestial

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

Titivilus

Monsters Mordenkainen Presents: Monsters of the Multiverse

Teleport. Assault (Costs 2 Actions). Titivilus makes one Silver Sword attack, or he uses Frightful Word.Dispater, the gloomy Lord of Dis, rules from his iron palace, seeming to hide behind its

, Titivilus has manipulated everyone along his path to power, either to win them over to his cause or to remove them as a threat. Since gaining his position, Titivilus has convinced Dispater that countless

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

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.

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

Orcus Legacy

Monsters Out of the Abyss

chapter 7, "Treasure” of the Dungeon Master’s Guide.Orcus’s Lair Orcus makes his lair in the fortress city of Naratyr, which is on Thanatos, the layer of the Abyss that he rules

action to cause one of the following effects; he can’t use the same effect two rounds in a row: Orcus’s voice booms throughout the lair. His utterance causes one creature of his choice to

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

Ancient Dragon Turtle

Monsters Fizban's Treasury of Dragons

table to help select spells for a spellcasting dragon. (Though the Monster Manual doesn’t explicitly include dragon turtles in the variant rules for making a dragon a spellcaster, you can apply

those rules to these aquatic dragons.) Dragon Turtle Personality Traits d8;{"diceNotation":"1d8","rollType":"roll","rollAction":"Trait"} Trait 1 I speak slowly and deliberately

Adult Crystal Dragon

Monsters Fizban's Treasury of Dragons

without the boredom. (Chaotic) 6 Control. Everyone is welcome, as long as they follow my rules. (Lawful) Crystal Dragon Adventures The Crystal Dragon Adventure Hooks table offers

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

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

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

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

Ancient Crystal Dragon

Monsters Fizban's Treasury of Dragons

is learning, but without the boredom. (Chaotic) 6 Control. Everyone is welcome, as long as they follow my rules. (Lawful) Crystal Dragon Adventures The Crystal Dragon Adventure Hooks

dragon issues that isn’t directly harmful to the creature. Ice 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

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

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

Ancient White Dragon Legacy

Monsters Basic Rules (2014)

freezing 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

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

Control Water Legacy

Spells Basic Rules (2014)

. Part Water. You cause water in the area to move apart and create a trench. The trench extends across the spell's area, and the separated water forms a wall to either side. The trench remains until the

. As an action on your turn, you can 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 the area

Helm of Brilliance Legacy

Magic Items Basic Rules (2014)

: 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. As long as it has at least

at least one ruby, you have resistance to fire damage. As long as the helm has at least one fire opal, you can use an action and speak a command word to cause one weapon you are holding to burst into

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