Search Results
All Results
Characters
Compendium
Spells
Items
Monsters
Vehicles
Forums
Returning 35 results for 'hour reaction'.
Spells
Player’s Handbook
can command the target to take a Reaction but must take your own Reaction to do so.
Using a Higher-Level Spell Slot. Your Concentration can last longer with a spell slot of level 6 (up to 10 minutes), 7 (up to 1 hour), or 8+ (up to 8 hours).
Monsters
Monster Manual
Hold Breath. The hydra can hold its breath for 1 hour.
Multiple Heads. The hydra has five heads. Whenever the hydra takes 25 damage or more on a single turn, one of its heads dies. The hydra dies if
damage since its last turn. The hydra regains 20 Hit Points when it grows new heads.
Reactive Heads. For each head the hydra has beyond one, it gets an extra Reaction that can be used only for
Spells
Player’s Handbook
command the target to take a Reaction but must take your own Reaction to do so.
Using a Higher-Level Spell Slot. Your Concentration can last longer with a spell slot of level 5 (up to 10 minutes), 6 (up to 1 hour), or 7+ (up to 8 hours).
Magic Items
Dungeon Master’s Guide
;Absorption (Very Rare). While this pale lavender ellipsoid orbits your head, you can take a Reaction to cancel a spell of level 4 or lower cast by a creature you can see. A canceled spell has no effect
Stone of Greater Absorption;Greater Absorption (Legendary). While this marbled lavender and green ellipsoid orbits your head, you can take a Reaction to cancel a spell of level 8 or lower cast by a
Spells
Forgotten Realms: Heroes of Faerûn
. On a failed save, the spell dissipates with no effect, and the action, Bonus Action, or Reaction used to cast it is wasted. If that spell was cast with a spell slot, the slot isn’t expended
Circle spell.
Secondary Casters
Area of Effect
Duration
1–3
40-foot-radius, 40-foot-high Cylinder
1 Hour
4–6
60-foot-radius, 60-foot-high Cylinder
8 Hours
7+
100-foot-radius, 100-foot-high Cylinder
24 Hours
Hydra
Legacy
This doesn't reflect the latest rules and lore.
Learn More
Monsters
Basic Rules (2014)
Hold Breath. The hydra can hold its breath for 1 hour.
Multiple Heads. The hydra has five heads. While it has more than one head, the hydra has advantage on saving throws against being blinded
.
Reactive Heads. For each head the hydra has beyond one, it gets an extra reaction that can be used only for opportunity attacks.
Wakeful. While the hydra sleeps, at least one of its heads is
Duergar Kavalrachni
Legacy
This doesn't reflect the latest rules and lore.
Learn More
Monsters
Out of the Abyss
Cavalry Training. When the duergar hits a target with a melee attack while mounted on a female steeder, the steeder can make a melee attack against the same target as a reaction.
Duergar Resilience
":"damage","rollAction":"Heavy Crossbow","rollDamageType":"piercing"} piercing damage.
Shared Invisibility (Recharges after a Short or Long Rest).The duergar magically turns invisible for up to 1 hour or
Monsters
Icewind Dale: Rime of the Frostmaiden
Hold Breath. The Telepathic Pentacle can hold its breath for 1 hour.
Multiple Heads. The Telepathic Pentacle has five heads. While it has more than one head, the Telepathic Pentacle has advantage on
. The Telepathic Pentacle regains 10 hit points for each head regrown in this way.
Reactive Heads. For each head the Telepathic Pentacle has beyond one, it gets an extra reaction that can be used only
Drow House Captain
Legacy
This doesn't reflect the latest rules and lore.
Learn More
Monsters
Mordenkainen’s Tome of Foes
Battle Command. As a bonus action, the drow targets one ally he can see within 30 feet of him. If the target can see or hear the drow, the target can use its reaction to make one melee attack or to
","rollAction":"Hand Crossbow","rollDamageType":"piercing"} piercing damage, and the target must succeed on a DC 13 Constitution saving throw or be poisoned for 1 hour. If the saving throw fails by 5 or
Monsters
Mythic Odysseys of Theros
","rollDamageType":"acid"} acid damage.
Hold Breath. The hydra can hold its breath for 1 hour.
Multiple Heads. The hydra has five heads. While it has more than one head, the hydra has advantage on saving throws
each head regrown in this way.
Reactive Heads. For each head the hydra has beyond one, it gets an extra reaction that can be used only for opportunity attacks.
Wakeful. While the hydra sleeps, at least
Monsters
Mordenkainen Presents: Monsters of the Multiverse
hour. If the saving throw fails by 5 or more, the target is also unconscious while poisoned in this way. The target regains consciousness if it takes damage or if another creature takes an action to
subterranean world of that god’s malevolence.Battle Command. Choose one creature within 30 feet of the drow that the drow can see. If the chosen creature can see or hear the drow, that creature can use its reaction to make one melee attack or to take the Dodge or Hide action.
Dominate Beast
Legacy
This doesn't reflect the latest rules and lore.
Learn More
Spells
Basic Rules (2014)
. During this time, you can also cause the creature to use a reaction, but this requires you to use your own reaction as well.
Each time the target takes damage, it makes a new Wisdom saving throw against
-level spell slot, the duration is concentration, up to 1 hour. When you use a spell slot of 7th level or higher, the duration is concentration, up to 8 hours.
Dominate Person
Legacy
This doesn't reflect the latest rules and lore.
Learn More
Spells
Basic Rules (2014)
. During this time you can also cause the creature to use a reaction, but this requires you to use your own reaction as well.
Each time the target takes damage, it makes a new Wisdom saving throw
7th-level spell slot, the duration is concentration, up to 1 hour. When you use a spell slot of 8th level or higher, the duration is concentration, up to 8 hours.
Monsters
Monstrous Compendium Vol. 4: Eldraine Creatures
an extra reaction that can be used only for opportunity attack;opportunity attacks.
Wakeful. While the Goose Mother sleeps, at least one of its heads is awake.Multiattack. The Goose Mother makes as
sprouted in place of the first. Enraged, the Goose Mother devoured the witch and rampaged deep into the wilds where it lives to this day.
The Goose Mother lays one golden egg every hour, precisely on the
Duergar Mind Master
Legacy
This doesn't reflect the latest rules and lore.
Learn More
Monsters
Mordenkainen’s Tome of Foes
":"1d6","rollType":"recharge","rollAction":"Invisibility"}. The duergar magically turns invisible for up to 1 hour or until it attacks, it casts a spell, it uses its Reduce, or its concentration is broken
succeed on a DC 12 Intelligence saving throw, or the duergar causes it to use its reaction either to make one weapon attack against another creature the duergar can see or to move up to 10 feet in a
Duergar Warlord
Legacy
This doesn't reflect the latest rules and lore.
Learn More
Monsters
Mordenkainen’s Tome of Foes
damage while enlarged.
Call to Attack. Up to three allied duergar within 120 feet of this duergar that can hear it can each use their reaction to make one weapon attack.
Enlarge (Recharges after a Short
space available.
Invisibility (Recharge 4–6);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Invisibility"}. The duergar magically turns invisible for up to 1 hour or until it attacks, it
Monsters
Waterdeep: Dungeon of the Mad Mage
Battle Command. As a bonus action, Zress Orlezziir targets one ally she can see within 30 feet of her. If the target can see or hear the drow, the target can use its reaction to make one melee attack
Constitution saving throw or be poisoned for 1 hour. If the saving throw fails by 5 or more, the target is also unconscious while poisoned in this way. The target regains consciousness if it takes damage or
Monsters
The Book of Many Things
Unerring Tracker trait to make one weapon attack as a reaction against the target of that ally’s Unerring Tracker.
Spellcasting. Brusipha casts one of the following spells, using Charisma as the
creature to 0 hit points, she gains 8 temporary hit points.Unerring Tracker. Brusipha magically creates a psychic link with one creature she can see. For the next hour, Brusipha knows the current
Zuggtmoy
Legacy
This doesn't reflect the latest rules and lore.
Learn More
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
Magic Items
Princes of the Apocalypse
levitate spell for 10 minutes, targeting yourself and requiring no concentration. Alternatively, you can use a reaction to deploy the balloon when you’re falling and gain the effect of the feather
is unusable unless the backpack is recharged for 1 hour in an elemental air node, which binds another spirit to the backpack.
monsters
hour or until Azalin takes this Reaction again, Azalin can cast that spell once, using the same spellcasting ability as Spellcasting.Legendary Action Uses: 3 (4 in Domain). Immediately after another
freedom, and his metaphysical violations inevitably reverted to the Dark Powers’ original designs. Nevertheless, Azalin refused to stay a prisoner. His most recent plot culminated in the Hour
Monsters
Mordenkainen Presents: Monsters of the Multiverse
Cavalry Training. When the duergar hits a target with a melee attack while mounted, the mount can use its reaction to make one melee attack against the same target.
Duergar Resilience. The duergar
Invisibility (Recharges after a Short or Long Rest). The duergar magically turns invisible for up to 1 hour or until it attacks, it forces a creature to make a saving throw, or its concentration is
Magic Items
The Book of Many Things
, once per turn when you deal damage to the doomed creature, you can roll 1d6 and add the number rolled to the damage roll. These benefits persist for 1 hour or until you target another creature with this
effect.
Twist of Fate. When a creature within 60 feet of you makes a saving throw or an attack roll, you can use your reaction to expend 3 charges and alter the outcome, turning a failed saving
feats
Forgotten Realms: Heroes of Faerûn
saving throw against a spell, you can take a Reaction to roll on the Mythal-Touched Magic table to create a magical effect. If an effect requires a saving throw, the DC equals 8 plus the modifier of
spell on a failed save or half as much damage on a successful one.
3-7
You and the triggering spell’s caster form a Telepathy;telepathic link for 1 hour.
8-10
Gravity is reversed in a
Monsters
Mordenkainen Presents: Monsters of the Multiverse
under the effect of Reduce.
Invisibility (Recharge 4–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Invisibility"}. The duergar magically turns invisible for up to 1 hour or until it
. The duergar targets one creature it can see within 60 feet of it. The target must succeed on a DC 12 Intelligence saving throw, or the duergar causes it to use its reaction, if available, either to
Monsters
Mordenkainen Presents: Monsters of the Multiverse
use their reaction to make one weapon attack.
Invisibility (Recharge 4–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Invisibility"}. The duergar magically turns invisible for up to 1
hour or until it attacks, it forces a creature to make a saving throw, or its concentration is broken (as if concentrating on a spell). Any equipment the duergar wears or carries is invisible with
Monsters
Mythic Odysseys of Theros
","rollDamageType":"acid"} acid damage.
Hold Breath. Polukranos can hold its breath for 1 hour.
Legendary Resistance (3/Day). If Polukranos fails a saving throw, it can choose to succeed instead.
Multiple
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
Magic Items
The Book of Many Things
. Unless a card states otherwise, as soon as you draw a card from the deck, its magic takes effect. You must draw each card you declared no more than 1 hour after the previous draw. If you fail to draw
Constitution saving throw or have the poisoned condition for 1 hour as your body reels from the extradimensional travel.
Justice. You momentarily gain the ability to balance the scales of fate. For
Yeenoghu
Legacy
This doesn't reflect the latest rules and lore.
Learn More
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
a humanoid spends at least 1 hour within 1 mile of the lair, that creature must succeed on a DC 17 Wisdom saving throw or descend into a madness determined by the Madness of Yeenoghu table. A
Monsters
Mordenkainen Presents: Monsters of the Multiverse
traveled.
Unerring Tracker. As a bonus action, this creature magically creates a psychic link with one creature it can see. For the next hour, as a bonus action this creature learns the current
after a Short or Long Rest). As an action, this creature allows each ally within 30 feet of it that has the Unerring Tracker trait to make one weapon attack as a reaction against the target of that
Equipment
armor, even when it has 0 charges remaining.
Activating the Armor. As an action, you can expend any number of the armor’s charges to activate it; the armor remains active for 1 hour per charge
reaction to expend 1 of the armor’s charges to deploy a defensive force field. Roll 3d10 and reduce the damage taken by the total rolled.
Propulsion. As a bonus action, you can expend 1 of the
Graz'zt
Legacy
This doesn't reflect the latest rules and lore.
Learn More
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
frequent conflicts and coupling, mirroring the behavior that occurs during their mating seasons.
If a humanoid spends at least 1 hour within 1 mile of the lair, that creature must succeed on a DC 23
Monsters
Mordenkainen Presents: Monsters of the Multiverse
. One creature charmed by Zuggtmoy that she can see must use its reaction, if available, to move up to its speed as she directs or to make one weapon attack against a target that she designates.The Demon
within the lair. They vanish after 1 hour.
Unleash Spores. Zuggtmoy uses either her Infestation Spores or her Mind Control Spores, centered on a mushroom or other fungus within her lair, instead of on
Magic Items
Acquisitions Incorporated
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
long rest.
Bead of Instant Karma
At rank 3, one of the beads on your occultant abacus channels the power of instant karma, turning the occultant abacus into a rare magic item. As a reaction, you can
Magic Items
Lost Laboratory of Kwalish
any environment for up to 1 hour (1 charge or 5 hit points).
Gain darkvision to a range of 60 feet for up to 1 hour (1 charge or 5 hit points).
The armor can accept only one energy cell at a time
magic that generates a conduit something like an astral silver cord. While so connected, a willing ally can give up hit points as a reaction to fuel the armor’s abilities.