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Returning 35 results for 'beam before decreases cause round'.
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Magic Items
Dungeon Master’s Guide
function of the gem.
Second Command Word. You expend 1 charge and cause the gem to fire a brilliant beam of light at one creature you can see within 60 feet of yourself. The creature must succeed on a
Word. You expend 5 charges and cause the gem to flare with intense light in a 30-foot Cone. Each creature in the Cone makes a saving throw as if struck by the beam created with the second command word.
When all of the gem’s charges are expended, the gem becomes a nonmagical jewel worth 50 GP.
Monsters
Monster Manual
it, and the guardian knows the distance and direction to the amulet. If the guardian is within 60 feet of the amulet’s wearer, half of any damage the wearer takes (round up) is transferred to
cause the guardian to store one spell of level 4 or lower. To do so, the wearer must cast the spell on the guardian while within 5 feet of it. The spell has no effect but is stored within the guardian
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
and is then destroyed. Each creature within a 60-foot Emanation originating from you must succeed on a DC 17 Dexterity saving throw or be struck by a beam, taking Radiant damage equal to the number of gems in the helm.
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
Spells
Player’s Handbook
a reroll of any die roll made within the last round (including your last turn). Reality reshapes itself to accommodate the new result. For example, a Wish spell could undo an ally’s failed
for 2d4 days. For each of those days that you spend resting and doing nothing more than light activity, your remaining recovery time decreases by 2 days. Finally, there is a 33 percent chance that you are unable to cast Wish ever again if you suffer this stress.
Monsters
Quests from the Infinite Staircase
heart.Multiattack. Nafik can use his Dreadful Glare and makes one Rotting Fist or Unholy Beam attack.
Rotting Fist. Melee Weapon Attack: +7;{"diceNotation":"1d20+7", "rollType":"to hit", "rollAction
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", "rollType":"roll", "rollAction":"Rotting Fist
Gem of Brightness
Legacy
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Magic Items
Basic Rules (2014)
This prism has 50 charges. While you are holding it, you can use an action to speak one of three command words to cause one of the following effects:
The first command word causes the gem to shed
function of the gem.
The second command word expends 1 charge and causes the gem to fire a brilliant beam of light at one creature you can see within 60 feet of you. The creature must succeed on a
Gunpowder, Powder Horn
Legacy
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Equipment
fire to a container full of gunpowder can cause it to explode, dealing fire damage to creatures within 10 feet of it (3d6 for a powder horn, 7d6 for a keg). A successful DC 12 Dexterity saving throw
halves the damage. Setting fire to an ounce of gunpowder causes it to flare for 1 round, shedding bright light in a 30-foot radius and dim light for an additional 30 feet.
Gunpowder, Keg
Legacy
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Equipment
fire to a container full of gunpowder can cause it to explode, dealing fire damage to creatures within 10 feet of it (3d6 for a powder horn, 7d6 for a keg). A successful DC 12 Dexterity saving throw
halves the damage. Setting fire to an ounce of gunpowder causes it to flare for 1 round, shedding bright light in a 30-foot radius and dim light for an additional 30 feet.
Monsters
Tyranny of Dragons
decreases by 10 (3d6);{"diceNotation":"3d6","rollType":"roll","rollAction":"Rotting Fist"} for every 24 hours that elapse. If the curse reduces the target’s hit point maximum to 0, the target
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
Moonbeam
Legacy
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Spells
Basic Rules (2014)
A silvery beam of pale light shines down in a 5-foot-radius, 40-foot-high cylinder centered on a point within range. Until the spell ends, dim light fills the cylinder.
When a creature enters the
spell’s area for the first time on a turn or starts its turn there, it is engulfed in ghostly flames that cause searing pain, and it must make a Constitution saving throw. It takes 2d10 radiant
Mummy Lord
Legacy
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Monsters
Basic Rules (2014)
, and its hit point maximum decreases by 10 (3d6);{"diceNotation":"3d6","rollType":"roll","rollAction":"Rotting Fist"} for every 24 hours that elapse. If the curse reduces the target's hit point maximum
On initiative count 20 (losing initiative ties), the mummy lord takes a lair action to cause one of the following effects; the mummy lord can’t use the same effect two rounds in a row.
Each
Enlarge/Reduce
Legacy
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Spells
Basic Rules (2014)
You cause a creature or an object you can see within range to grow larger or smaller for the duration. Choose either a creature or an object that is neither worn nor carried. If the target is
damage.
Reduce. The target's size is halved in all dimensions, and its weight is reduced to one-eighth of normal. This reduction decreases its size by one category--from Medium to Small, for example
Merrenoloth
Legacy
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Monsters
Mordenkainen’s Tome of Foes
merrenoloth can invoke its ability to take lair actions. On initiative count 20 (losing initiative ties), the merrenoloth can take one lair action to cause one of the following effects; it can't use the
30 feet until initiative count 20 on the next round.
The air within 60 feet of the ship is filled with howling wind. Until initiative count 20 on the next round, that area is difficult terrain, and
Monsters
Waterdeep: Dungeon of the Mad Mage
, and its hit point maximum decreases by 10 (3d6);{"diceNotation":"3d6","rollType":"roll","rollAction":"Rotting Fist"} for every 24 hours that elapse. If the curse reduces the target's hit point maximum
takes a lair action to cause one of the following effects; the mummy lord can’t use the same effect two rounds in a row.
Each undead creature in the lair can pinpoint the location of each
Control Water
Legacy
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Spells
Basic Rules (2014)
spell ends or you choose a different effect. The water then slowly fills in the trench over the course of the next round until the normal water level is restored.
Redirect Flow. You cause flowing water
. 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
Monsters
Candlekeep Mysteries
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
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
Helm of Brilliance
Legacy
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Magic Items
Basic Rules (2014)
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
you must succeed on a DC 17 Dexterity saving throw or be struck by a beam, taking radiant damage equal to the number of gems in the helm. The helm and its gems are then destroyed.
Ancient Gold Dragon
Legacy
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Monsters
Basic Rules (2014)
ancient ruins.
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 a row:
The dragon glimpses the future, so it has advantage on attack rolls, ability checks, and saving throws until initiative count 20 on the next round.
One creature the dragon can see within
Demilich
Legacy
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Monsters
Monster Manual (2014)
","rollAction":"Take Lair Action"}. On a result of 11 or higher, the demilich takes a lair action to cause one of the following effects. It can’t use the same effect two rounds in a row.
The tomb
of it. An 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
Ancient Green Dragon
Legacy
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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
. Furthermore, a creature in the wall’s space must make a DC 15 Dexterity saving throw once each round it’s in contact with the wall, taking 18 (4d8);{"diceNotation":"4d8","rollType":"damage
Monsters
The Book of Many Things
an action to wake it.
Moonlight Breath. Pazrodine exhales a beam of moonlight in a 120-foot line that is 10 feet wide. Each creature in that area must make a DC 21 Dexterity saving throw, taking 60
dream plane. The target must succeed on a DC 15 Charisma saving throw or be banished to a harmless demiplane until initiative count 20 on the next round. While there, the target has the stunned condition
Ancient Silver Dragon
Legacy
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Monsters
Basic Rules (2014)
dragon dreams of.
Lair Actions
On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects:
The dragon creates fog as if it had cast the
fog cloud spell. The fog lasts until initiative count 20 on the next round.
A blisteringly cold wind blows through the lair near the dragon. Each creature within 120 feet of the dragon must succeed on
Kraken
Legacy
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Monsters
Basic Rules (2014)
Amphibious. The kraken can breathe air and water.
Freedom of Movement. The kraken ignores difficult terrain, and magical effects can't reduce its speed or cause it to be restrained. It can spend 5
detritus, treasure, and wrecked ships.
Lair Actions
On initiative count 20 (losing initiative ties), the kraken takes a lair action to cause one of the following magical effects:
A strong current moves
Adult Gold Dragon
Legacy
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Monsters
Basic Rules (2014)
ruins.
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 a row
:
The dragon glimpses the future, so it has advantage on attack rolls, ability checks, and saving throws until initiative count 20 on the next round.
One creature the dragon can see within 120 feet
Adult Silver Dragon
Legacy
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Monsters
Basic Rules (2014)
dreams of.
Lair Actions
On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects:
The dragon creates fog as if it had cast the fog cloud
spell. The fog lasts until initiative count 20 on the next round.
A blisteringly cold wind blows through the lair near the dragon. Each creature within 120 feet of the dragon must succeed on a DC 15
Adult Green Dragon
Legacy
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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
, a creature in the wall’s space must make a DC 15 Dexterity saving throw once each round it’s in contact with the wall, taking 18 (4d8);{"diceNotation":"4d8","rollType":"damage
Death Tyrant
Legacy
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Monsters
Monster Manual (2014)
the ambient magic to take lair actions. On initiative count 20 (losing initiative ties), the death tyrant can take one lair action to cause one of the following effects:
An area that is a 50-foot
the next round.
Walls sprout spectral appendages until initiative count 20 on the round after next. Any creature, including one on the Ethereal Plane, that is hostile to the tyrant and starts its
Beholder
Legacy
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Monsters
Monster Manual (2014)
actions. On initiative count 20 (losing initiative 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 initiative count 20 on the next round.
Walls within 120 feet of the beholder sprout grasping appendages until initiative count 20 on the round
Monsters
Princes of the Apocalypse
Caves, described in chapter 5), Yan-C-Bin is master. He can use the following actions in his lair.
Lair Actions
On initiative count 20 (losing initiative ties), Yan-C-Bin takes a lair action to cause
lasts until initiative count 20 on the next round. The debris lightly obscures every creature and object in the area for the duration. All creatures in the area must succeed at a DC 24 Wisdom saving throw
Ancient Bronze Dragon
Legacy
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Monsters
Basic Rules (2014)
vault or nest for its eggs.
Lair Actions
On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects:
The dragon creates fog as though it
had cast the fog cloud spell. The fog lasts until initiative count 20 on the next round.
A thunderclap originates at a point the dragon can see within 120 feet of it. Each creature within a 20-foot
Adult Red Dracolich
Legacy
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Monsters
Monster Manual (2014)
, telling the grim story of its life, the enemies it has slain, and the nations it has conquered.
Lair Actions
On initiative count 20 (losing initiative ties), the dracolich takes a lair action to cause
lasts until initiative count 20 on the next round. Each creature that starts its turn in the cloud must succeed on a DC 13 Constitution saving throw or be poisoned until the end of its turn. While
Monsters
Ghosts of Saltmarsh
Amphibious. The kraken can breathe air and water.
Freedom of Movement. The kraken ignores difficult terrain, and magical effects can't reduce its speed or cause it to be restrained. It can spend 5
, treasure, and wrecked ships.
Lair Actions
On initiative count 20 (losing initiative ties), the kraken takes a lair action to cause one of the following magical effects:
A strong current moves
Adult Bronze Dragon
Legacy
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Monsters
Basic Rules (2014)
vault or nest for its eggs.
Lair Actions
On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects:
The dragon creates fog as though it
had cast the fog cloud spell. The fog lasts until initiative count 20 on the next round.
A thunderclap originates at a point the dragon can see within 120 feet of it. Each creature within a 20-foot
Adult Copper Dragon
Legacy
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Monsters
Basic Rules (2014)
treasure is hidden.
Lair Actions
On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects:
The dragon chooses a point on the ground that
the next round, the mud hardens, and the Strength DC to work free increases to 20.
Regional Effects
The region containing a legendary copper dragon’s lair is warped by the dragon’s magic






