certain reaction guide to have response

Marilith

Monsters Monster Manual

Resistance. The marilith has Advantage on saving throws against spells and other magical effects. Reactive. The marilith can take one Reaction on every turn of combat.Multiattack. The marilith makes six Pact

ends.Parry. Trigger: The marilith is hit by a melee attack roll while holding a weapon. Response: The marilith adds 5 to its AC against that attack, possibly causing it to miss.PoisonCold, Fire

Warrior Commander

Monsters Monster Manual

effects: Sap. The target has Disadvantage on its next attack roll before the start of the warrior’s next turn. Maneuver. One ally who can see or hear the warrior can take a Reaction to move up

until the end of the target’s next turn.Counterattack. Trigger: The warrior is hit by an attack roll. Response: The warrior adds 4 to its AC against that attack, possibly causing it to miss. On a

Quarterstaff of the Acrobat

Magic Items Dungeon Master’s Guide

) or a 10-foot pole, or reverting it a Quarterstaff; the weapon will elongate only as far as the surrounding space allows. In certain forms, the weapon has the following additional properties

an attack while holding the weapon, you can take a Reaction to twirl the weapon around you, gaining a +5 bonus to your Armor Class against the triggering attack, potentially causing the attack to miss

Summon Construct

Spells Player’s Handbook

, Metal, or Stone. The creature resembles an animate statue (you determine the appearance) made of the chosen material, which determines certain details in its stat block. The creature disappears when

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

Chwinga Astronaut

Monsters Spelljammer: Adventures in Space

within 5 feet of itself. The target gains a supernatural charm of the DM’s choice. See the Dungeon Master’s Guide for more information on supernatural charms. Natural Shelter. The chwinga

’s Guide. Charm of Air Bubbles This charm allows you to cast the air bubble spell (see the Astral Adventurer’s Guide) as an action. Once used three times, this charm goes away. Charm of

Flind

Monsters Mordenkainen Presents: Monsters of the Multiverse

"} bludgeoning damage, and the target must make a DC 16 Wisdom saving throw. On a failed save, the target must use its reaction, if available, to make one melee attack against a random creature, other than

Yeenoghu, a flind uses demonic insight to guide the gnolls toward weak prey ripe for slaughter. Unlike other leaders who might skulk behind their minions, a flind leads the charge in battle. Its flail causes wracking pain, paralysis, and disorientation in those it strikes.

White Abishai

Monsters Mordenkainen Presents: Monsters of the Multiverse

(1d10 + 3);{"diceNotation":"1d10+3", "rollType":"damage", "rollAction":"Longsword", "rollDamageType":"force"} force damage if used with two hands.Vicious Reprisal. In response to taking damage, the

Asmodeus’s plans invites certain destruction.Cold, Fire, PoisonBludgeoning, Piercing, and Slashing from Nonmagical Attacks that aren't Silvered

Zuggtmoy Legacy

Monsters Out of the Abyss

Thrall. When Zuggtmoy is hit by an attack, one creature within 5 feet of Zuggtmoy that is charmed by her must use its reaction to be hit by the attack instead.Zuggtmoy can take 3 legendary actions

turn. Attack. Zuggtmoy makes one pseudopod attack. Exert Will. One creature charmed by Zuggtmoy that she can see must use its reaction to move up to its speed as she directs or to make a weapon

Star Spawn Mangler

Monsters Mordenkainen Presents: Monsters of the Multiverse

communication. When the signs are right, cultists gather together, read aloud their blasphemous texts, and conduct the mind-searing rituals that guide star spawn into the world. Elder Evil Blessings

Disciples of certain Elder Evils can bestow supernatural gifts on those who serve that cult, including star spawn. The following powers are unique to specific cults; typically a creature has only one

Star Spawn Grue

Monsters Mordenkainen Presents: Monsters of the Multiverse

blasphemous texts, and conduct the mind-searing rituals that guide star spawn into the world. Elder Evil Blessings Disciples of certain Elder Evils can bestow supernatural gifts on those who serve

Fractine

Monsters Monstrous Compendium Vol. 1: Spelljammer Creatures

":"force"} force damage.Mirrored Damage. In response to being damaged by a creature it can see within 120 feet of itself, the fractine forces that creature to make a DC 16 Constitution saving throw. On

surfaces substituting for the mirror needed to cast certain divination spells. While being used in this way, the fractine siphons magical energy from the spellcaster—not enough to cause harm

Belashyrra

Monsters Eberron: Rising from the Last War

succeed on a DC 22 Wisdom saving throw or take 22 (4d10);{"diceNotation":"4d10","rollType":"damage","rollAction":"Implant Fear","rollDamageType":"psychic"} psychic damage and immediately use its reaction

Dungeon Master’s Guide has more information on madness. Madness of Belashyrra d6 Flaw (lasts until cured) 1 “I constantly see shapes moving in the shadows.” 2

Khrusor, Spear of Heliod

Magic Items Mythic Odysseys of Theros

“Artifacts” in chapter 7 of the Dungeon Master’s Guide for details on randomly determined properties. Luminous. The spear sheds bright light in a 30-foot radius and dim light for an

additional 30 feet. The light is sunlight. Sun’s Retaliation. When you take damage from a creature within 5 feet of you, you can use your reaction to make a melee attack with the spear against that

Adult Time Dragon

Monsters Planescape: Adventures in the Multiverse

succeeds on three of these saves.The dragon can take up to three reactions per round but only one per turn. Reactive Rend. After using Legendary Resistance or in response to being hit by an attack

action on its turn, not both. The creature also can’t take a reaction or a bonus action. Timeline Divergence. The dragon chooses a space it can fit into within its lair. The dragon exists

Star Spawn Larva Mage

Monsters Mordenkainen Presents: Monsters of the Multiverse

available for communication. When the signs are right, cultists gather together, read aloud their blasphemous texts, and conduct the mind-searing rituals that guide star spawn into the world. Elder Evil

Blessings Disciples of certain Elder Evils can bestow supernatural gifts on those who serve that cult, including star spawn. The following powers are unique to specific cults; typically a creature has

Dragon-Touched Focus

Magic Items Fizban's Treasury of Dragons

you makes a saving throw, you can use your reaction to give that creature advantage on the saving throw. Dragon-Touched Focus (Wakened);Wakened (Very Rare). The Wakened focus has the Slumbering and

Stirring properties, and while you are holding a Wakened focus, you can use it to cast certain spells. Once the item is used to cast a given spell, it can’t be used to cast that spell again

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

, suggestion, telekinesisPoisoning Rebuke (Requires Blood Rune). In response to being damaged by a creature the fomorian can see within 60 feet of itself, the fomorian forces that creature to make a DC 16

Star Spawn Hulk

Monsters Mordenkainen Presents: Monsters of the Multiverse

available for communication. When the signs are right, cultists gather together, read aloud their blasphemous texts, and conduct the mind-searing rituals that guide star spawn into the world. Elder Evil

Blessings Disciples of certain Elder Evils can bestow supernatural gifts on those who serve that cult, including star spawn. The following powers are unique to specific cults; typically a creature has

Yeenoghu Legacy

Monsters Out of the Abyss

condition. Each gnoll or hyena that Yeenoghu can see can use its reaction to move up to its speed. Until the next initiative count 20, all gnoll;gnolls and hyena;hyenas within the lair are enraged

madness, which is a character flaw that lasts until cured. See the Dungeon Master’s Guide for more on madness. Madness of Yeenoghu d100 Flaw (lasts until cured) 01–20

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

(Recharge 5–6). As a reaction when this creature takes damage, it can roll a d10 and subtract the number rolled from the damage. Cold, Fire, PoisonBludgeoning, Piercing, and Slashing from Nonmagical Attacks that aren't Silvered

Ancient Time Dragon

Monsters Planescape: Adventures in the Multiverse

Legendary Resistance or in response to being hit by an attack roll, the dragon makes one Rend attack. Slow Time. Immediately after a creature the dragon can see ends its turn, the dragon targets a creature

affected creature can move or take an action on its turn, not both. The creature also can’t take a reaction or a bonus action. Timeline Divergence. The dragon chooses a space it can fit into

Graz'zt Legacy

Monsters Out of the Abyss

reaction to move up to its speed as Graz’zt directs. Sow Discord. Graz’zt casts crown of madness or dissonant whispers. Teleport. Graz’zt uses his Teleport action.The appearance of the

Master’s Guide for more on madness. Madness of Graz’zt d100 Flaw (lasts until cured) 01–20 “There is nothing in the world more important than me and my

Star Spawn Seer

Monsters Mordenkainen Presents: Monsters of the Multiverse

aloud their blasphemous texts, and conduct the mind-searing rituals that guide star spawn into the world. Elder Evil Blessings Disciples of certain Elder Evils can bestow supernatural gifts on those

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

–6). As a reaction when this creature takes damage, it can roll a d10 and subtract the number rolled from the damage. Geryon (Variant);VARIANT: SOUND THE HORN Geryon can have an action that

Priest of Osybus (Ectoplasmic)

Monsters Van Richten’s Guide to Ravenloft

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 been for naught if Osybus’s

be certain that they will be reborn when they perish. In an effort to rid themselves of this curse, they devoted themselves to the same Dark Powers with whom their master had communed. They were

Priest of Osybus (Spectral)

Monsters Van Richten’s Guide to Ravenloft

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

;that their immortality would fail them when they least expected it and that he himself would become one of the Dark Powers. As a result of that curse, a priest of Osybus can’t be certain that they

Priest of Osybus (Vampiric)

Monsters Van Richten’s Guide to Ravenloft

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

and that he himself would become one of the Dark Powers. As a result of that curse, a priest of Osybus can’t be certain that they will be reborn when they perish. In an effort to rid themselves

Priest of Osybus (Dread)

Monsters Van Richten’s Guide to Ravenloft

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

immortality would fail them when they least expected it and that he himself would become one of the Dark Powers. As a result of that curse, a priest of Osybus can’t be certain that they will be

Priest of Osybus

Monsters Van Richten’s Guide to Ravenloft

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

himself would become one of the Dark Powers. As a result of that curse, a priest of Osybus can’t be certain that they will be reborn when they perish. In an effort to rid themselves of this

Priest of Osybus (Blazing)

Monsters Van Richten’s Guide to Ravenloft

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

that curse, a priest of Osybus can’t be certain that they will be reborn when they perish. In an effort to rid themselves of this curse, they devoted themselves to the same Dark Powers with whom

Priest of Osybus (Deathly)

Monsters Van Richten’s Guide to Ravenloft

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

become one of the Dark Powers. As a result of that curse, a priest of Osybus can’t be certain that they will be reborn when they perish. In an effort to rid themselves of this curse, they

Iggwilv's Cauldron

Magic Items The Wild Beyond the Witchlight

cauldron has the following random properties: 1 minor beneficial property (determined by rolling on the Minor Beneficial Properties table in the Dungeon Master’s Guide) 1 minor detrimental

property (determined by rolling on the Minor Detrimental Properties table in the Dungeon Master’s Guide) Iggwilv's Cauldron Gold;Gold Cauldron. The gold cauldron has the following properties

Lightning Caster

feats

creature, you can use a Bonus Action to target a second creature within the cantrip’s range. Immediate Response. When you cast a spell as a Reaction, that spell doesn’t expend a spell slot. Once you use this benefit, you can’t use it again until you finish a Long Rest.

Nilbog Legacy

Monsters Volo's Guide to Monsters

its Reversal of Fortune reaction. Nimble Escape. The nilbog can take the Disengage or Hide action as a bonus action on each of its turns.Fool’s Scepter. Melee Weapon Attack: +4;{"diceNotation

","rollType":"damage","rollAction":"Shortbow","rollDamageType":"piercing"} piercing damage.Reversal of Fortune. In response to another creature dealing damage to the nilbog, the nilbog reduces the

4. Reaction Timing

Compendium - Sources->Dungeons & Dragons->Tasha’s Cauldron of Everything

4. Reaction Timing Certain game features let you take a special action, called a reaction, in response to an event. Making opportunity attacks and casting the shield spell are two typical uses of

reactions. If you’re unsure when a reaction occurs in relation to its trigger, here’s the rule: the reaction happens after its trigger, unless the description of the reaction explicitly says otherwise. Once you take a reaction, you can’t take another one until the start of your next turn.

D&D Beyond

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