check writhing reaction

Net Legacy

Equipment

has no effect on creatures that are formless, or creatures that are Huge or larger. A creature can use its action to make a DC 10 Strength check, freeing itself or another creature within its reach on a

success. Dealing 5 slashing damage to the net (AC 10) also frees the creature without harming it, ending the effect and destroying the net. When you use an action, bonus action, or reaction to

Rope of Entanglement

Magic Items Dungeon Master’s Guide

(Athletics) or Dexterity (Acrobatics) check. On a successful check, the target is no longer Restrained by the rope. If you’re still holding onto the rope when a target escapes from it, you can take

a Reaction to command the rope to coil up in your hand; otherwise, the rope coils up in the target’s space. The rope has AC 20, HP 20, and Immunity to Poison and Psychic damage. It regains 1

Leprechaun

Monsters Quests from the Infinite Staircase

magically gifts the target a measure of luck. The creature gains the leprechaun’s Astonishing Luck reaction. The creature can use the reaction three times, after which this gift goes away. The

, Phantasmal Force 1/day each: Fabricate (as an action), MisleadAstonishing Luck. When the leprechaun fails an ability check, an attack roll, or a saving throw, it can roll a new d20 and choose which

Deck of Oracles

Magic Items The Book of Many Things

. Roll a d20 and record the number rolled. Once in the next 8 hours, immediately after a creature within 60 feet of you makes an ability check, an attack roll, or a saving throw, you can use your

reaction to discard the d20 roll; the creature must use the number you rolled in place of its roll. Additionally, while holding the cards, you can cast Divination from them. Once this property is used, it can’t be used again until the next dawn.

Chronolometer

Magic Items Acquisitions Incorporated

reroll the check and take either result. Once you use this feature of the chronolometer, it cannot be used again until the next dawn. Fate Swap. As a reaction when a creature you can see within 30 feet

doubling your speed until the end of the turn. On a 4–6, you go forward in time to warn yourself of what is to come. The next time you fail a saving throw, attack roll, or ability check, you can

Wheel of Stars

Magic Items Acquisitions Incorporated

While attuned to this device, you have a +1 bonus to Wisdom saving throws, and you can use an action to cast the dancing lights, guidance, or message cantrips. Portent of the Stars. As a reaction

when a creature you can see within 60 feet of you makes an attack roll, saving throw, or ability check, you make that creature roll a d10 and add or subtract the number rolled (your choice) from the

Occultant Abacus

Magic Items Acquisitions Incorporated

disadvantage. When such a roll is made, you can use a reaction to grant a d10 to a different creature you can see. That creature can add the d10 to any ability check, attack roll, or saving throw it

someone in your franchise within the last 24 hours, then grant the character who slew it a d10. Once within the next hour, that character can add the d10 to an attack roll, ability check, or saving

Graz'zt

Monsters Mordenkainen Presents: Monsters of the Multiverse

feet of him. If the spell is 3rd level or lower, the spell fails and has no effect. If the spell is 4th level or higher, Graz’zt makes a Charisma check against a DC of 10 + the spell’s

one Wave of Sorrow attack. Dance, My Puppet! One creature charmed by Graz’zt that Graz’zt can see must use its reaction to move up to its speed as Graz’zt directs.The appearance of

Astromancy Archive

Magic Items Tasha’s Cauldron of Everything

in the archive. The new spell must be of the divination school. When a creature you can see within 30 feet of you makes an attack roll, an ability check, or a saving throw, you can use your reaction

Duplicitous Manuscript

Magic Items Tasha’s Cauldron of Everything

book. The new spell must be of the illusion school. When a creature you can see makes an Intelligence (Investigation) check to discern the true nature of an illusion spell you cast, or makes a saving

throw against an illusion spell you cast, you can use your reaction and expend 1 charge to impose disadvantage on the roll.

Zorak Lightdrinker

Monsters Waterdeep: Dungeon of the Mad Mage

an ability check. Vampire Weaknesses. Zorak has the following flaws: Forbiddance. Zorak can't enter a residence without an invitation from one of the occupants. Harmed by Running Water. Zorak takes 20

vampire's lair. The fog occasionally takes eerie forms, such as grasping claws and writhing serpents. If the vampire is destroyed, these effects end after 2d6;{"diceNotation":"2d6","rollType":"roll"} days.Necrotic, Poison; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks

Polukranos

Monsters Mythic Odysseys of Theros

beyond one, it gets an extra reaction that can be used only to make opportunity attacks. Siege Monster. Polukranos deals double damage to objects and structures. Wakeful. While Polukranos sleeps, at

turn. Polukranos regains spent legendary actions at the start of its turn. Detect. Polukranos makes a Wisdom (Perception) check. Tail Swipe. Polukranos makes a tail attack. Trampling Charge (Costs

Shield of the Uven Rune

Magic Items Waterdeep: Dungeon of the Mad Mage

) check recognizes it as an uven (“enemy” in Giant) rune that confers great power. While holding the shield, you benefit from the following properties. Winter’s Friend. You are immune to

cold damage. Deadly Rebuke. Immediately after a creature hits you with a melee attack, you can use your reaction to deal 3d6 necrotic damage to that creature. Bane. You can cast the bane spell from

Fomorian Warlock of the Dark

Monsters Bigby Presents: Glory of the Giants

action and Poisoning Rebuke reaction. The object bearing the blood rune has AC 15; 30 hit points; and immunity to necrotic, poison, and psychic damage. The object regains all its hit points at the end

if it tries to cast a spell, it must first succeed on a DC 16 Intelligence check or the spell fails and is wasted. Eldritch Burst. Magical energy explodes in a 20-foot-radius sphere centered on a

Demogorgon

Monsters Mordenkainen Presents: Monsters of the Multiverse

its action, reaction, and movement. Spellcasting. Demogorgon casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 23

normally docile. Within that area, any ability check involving Animal Handling has disadvantage. Venomous Beasts. The area within 6 miles of the lair becomes overpopulated with poisonous snake

Deck of Wonder

Magic Items The Book of Many Things

the next 8 hours, whenever you or a creature within 60 feet of you is about to roll a d20 with advantage or disadvantage, you can use your reaction to prevent the roll from being affected by advantage

(chosen by the DM) disappears. The item remains nearby but concealed for a short time, so it can be found with a successful DC 15 Wisdom (Perception) check. If the item isn’t recovered within 1 hour, it disappears forever.

Mighty Servant of Leuk-o

Magic Items Tasha’s Cauldron of Everything

creatures can open the hatch as easily as any other door. Other creatures can open the hatch as an action with a successful DC 25 Dexterity check using thieves’ tools. A knock spell cast on the

action, you can command the servant to take one of the actions in its stat block or some other action. When a creature provokes an opportunity attack from the servant, you can use your reaction to command

Teeth of Dahlver-Nar

Magic Items Tasha’s Cauldron of Everything

, you can use your reaction to cause them to be hit instead. You can’t use this reaction again until you finish a short or long rest. 4 The Mill Road Murders (halfling canine) 3 green hag

Charisma check against a humanoid, you can roll a d10 and add the number rolled as a bonus to the result. The creature then becomes hostile to you at the next dawn. 7 The Donkey’s Dream

Ensnaring Strike Legacy

Spells Player’s Handbook (2014)

The next time you hit a creature with a weapon attack before this spell ends, a writhing mass of thorny vines appears at the point of impact, and the target must succeed on a Strength saving throw or

this spell, the target takes 1d6 piercing damage at the start of each of its turns. A creature restrained by the vines or one that can touch the creature can use its action to make a Strength check

Vampire Spawn Legacy

Monsters Basic Rules (2014)

ability check. Vampire Weaknesses. The vampire has the following flaws: Forbiddance. The vampire can't enter a residence without an invitation from one of the occupants. Harmed by Running Water. The

grasping claws and writhing serpents. If the vampire is destroyed, these effects end after 2d6;{"diceNotation":"2d6","rollType":"roll"} days.Necrotic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks

Wand of Binding Legacy

Magic Items Basic Rules (2014)

). Assisted Escape. While holding the wand, you can use your reaction to expend 1 charge and gain advantage on a saving throw you make to avoid being paralyzed or restrained, or you can expend 1 charge and gain advantage on any check you make to escape a grappled;grapple.

Giant Slug

Monsters The Tortle Package

needing to make an ability check. Innate Spellcasting. It can innately cast each of the following spells once per day, requiring no components: guiding bolt, sanctuary, and spiritual weapon. Its

(2d4 + 2);{"diceNotation":"2d4+2","rollType":"damage","rollDamageType":"piercing"} piercing damage.Animate Tentacle. When the slug takes damage in this cave, it can use its reaction to animate one of

Weave Numen

spells

within 120 feet of you casts a spell, you can take a Reaction to expend 1 thread to interrupt that spell. If it’s a spell of level 3 or lower, the spell fails and has no effect. If it’s a

spell of level 4 or higher, make an ability check using your spellcasting ability (DC equals 10 plus the spell’s level). On a successful check, the spell fails and has no effect. When you cast a

Vampire Legacy

Monsters Basic Rules (2014)

next turn. Spider Climb. The vampire can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check. Vampire Weaknesses. The vampire has the following flaws

grasping claws and writhing serpents. If the vampire is destroyed, these effects end after 2d6;{"diceNotation":"2d6","rollType":"roll"} days.Necrotic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks

Vampire Spellcaster Legacy

Monsters Monster Manual (2014)

, including upside down on ceilings, without needing to make an ability check. Vampire Weaknesses. The vampire has the following flaws: Forbiddance. The vampire can't enter a residence without an invitation

eerie forms, such as grasping claws and writhing serpents. If the vampire is destroyed, these effects end after 2d6;{"diceNotation":"2d6","rollType":"roll"} days.Necrotic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks

Vampire Warrior Legacy

Monsters Monster Manual (2014)

, including upside down on ceilings, without needing to make an ability check. Vampire Weaknesses. The vampire has the following flaws: Forbiddance. The vampire can't enter a residence without an invitation

occasionally takes eerie forms, such as grasping claws and writhing serpents. If the vampire is destroyed, these effects end after 2d6;{"diceNotation":"2d6","rollType":"roll"} days.Necrotic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks

Viscous Sheath

spells

Melee weapon, you can take a Reaction to have clots form around the weapon, entrapping it. The attacker must succeed on a Strength saving throw or the weapon sticks to you. If the attacker doesn’t

release the weapon, the creature has the Grappled condition while the weapon is stuck. While stuck, the weapon can’t be used. The target can take an action to make a Strength (Athletics) check

Mite

Monsters Mordenkainen's Fiendish Folio Volume 1

within 60 feet of it for 1 minute. If the mite is hidden, using this ability does not reveal its location. While the creature is affected by this hex, whenever it makes an attack roll, an ability check

, or a saving throw, it must roll a d6 and subtract the number rolled from the d20 roll. On any turn in which it suffers the effect of the hex, the target can attack an ally as a reaction, ignoring the

Bountiful Luck

feats Xanathar's Guide to Everything

. Surely a sign of fortune’s favor! When an ally you can see within 30 feet of you rolls a 1 on the d20 for an attack roll, an ability check, or a saving throw, you can use your reaction to let the

Ioun Stone Legacy

Magic Items Basic Rules (2014)

to separate it from you, either by making a successful attack roll against AC 24 or a successful DC 24 Dexterity (Acrobatics) check. You can use an action to seize and stow the stone, ending its

). While this pale lavender ellipsoid orbits your head, you can use your reaction to cancel a spell of 4th level or lower cast by a creature you can see and targeting only you. Once the stone has

Yuan-ti Pureblood Legacy

Species Volo's Guide to Monsters

cannibalizing their victims, and then performed a sorcerous ritual while writhing in pools filled with living snakes that enabled them to mix their flesh with that of serpents, becoming like the gods in

they don’t believe they have a reasonable chance of success. This reaction isn’t out of cowardice, but practicality—yuan-ti value their own lives much too highly to risk them when the

Ensnaring Strike

Compendium - Sources->Dungeons & Dragons->Player's Handbook (2014)

spell ends, a writhing mass of thorny vines appears at the point of impact, and the target must succeed on a Strength saving throw or be restrained by the magical vines until the spell ends. A Large

each of its turns. A creature restrained by the vines or one that can touch the creature can use its action to make a Strength check against your spell save DC. On a success, the target is freed. At

Reactions

Compendium - Sources->Dungeons & Dragons->Monster Manual (2014)

Reactions If a monster can do something special with its reaction, that information is contained here. If a creature has no special reaction, this section is absent. GRAPPLE RULES FOR MONSTERS Many

monsters have special attacks that allow them to quickly grapple prey. When a monster hits with such an attack, it doesn’t need to make an additional ability check to determine whether the grapple

Reactions

Compendium - Sources->Dungeons & Dragons->Monster Manual (2014)

Reactions If a monster can do something special with its reaction, that information is contained here. If a creature has no special reaction, this section is absent. GRAPPLE RULES FOR MONSTERS Many

monsters have special attacks that allow them to quickly grapple prey. When a monster hits with such an attack, it doesn’t need to make an additional ability check to determine whether the grapple

Identifying a Spell

Compendium - Sources->Dungeons & Dragons->Xanathar's Guide to Everything

Intelligence (Arcana) check with the reaction or action. The DC equals 15 + the spell’s level. If the spell is cast as a class spell and the character is a member of that class, the check is made with

Identifying a Spell Sometimes a character wants to identify a spell that someone else is casting or that was already cast. To do so, a character can use their reaction to identify a spell as it’s

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