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Returning 35 results for 'can't reduced grow to have reaction'.
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Monsters
Mythic Odysseys of Theros
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
legendary hydra Polukranos.
Territorial Terrors. During their early years, hydras feed their rapid growth by terrorizing the land. When they grow large enough, they look for a territory to claim as
Monsters
Monstrous Compendium Vol. 1: Spelljammer Creatures
target to escape the grapple causes the gadabout to use its reaction to move into the nearest unoccupied space. While grappled by the gadabout, the target determines where the gadabout moves on the
to date who know how to grow gadabouts. Since gadabouts don’t generate seeds, each one is a valuable commodity. Mercane and dohwar merchants who come into possession of a healthy gadabout might sell it for 2,500 gp or more.Fire
Magic Items
Bigby Presents: Glory of the Giants
. Additionally, you can cast the spare the dying cantrip using either an action or a bonus action.
Invoking the Rune. When a creature you can see within 60 feet of you is reduced to 0 hit points as a result of
taking damage, you can use your reaction to invoke the item’s rune, causing the pendant to flash with pale light. The creature then instead drops to 1 hit point.
Once the rune has been invoked, it can’t be invoked again until the next dawn.
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
gods, like the legendary hydra Polukranos.
Territorial Terrors. During their early years, hydras feed their rapid growth by terrorizing the land. When they grow large enough, they look for a
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
hour. Sometimes these eggs hatch into clutches of young geese that grow up to terrorize the marshes of Eldraine. Other times, the eggs contain trinkets or valuables. The fae folk of Eldraine’s
Monsters
Bigby Presents: Glory of the Giants
action and Ice Armor reaction.
The object bearing the rune has AC 16; 40 hit points; and immunity to necrotic, poison, and psychic damage. The object regains all its hit points at the end of every turn
, but it turns to dust if reduced to 0 hit points or when the giant dies. If the rune is destroyed, the giant can inscribe a frost rune on an object in its possession when it finishes a short or long
Monsters
Mythic Odysseys of Theros
and its mount have advantage on Dexterity saving throws. If the ashen rider is reduced to 0 hit points while riding its mount, the mount is reduced to 0 hit points as well.Multiattack. The ashen
Assault (Costs 2 Actions). The ashen rider makes an attack using its ashen blade or bolt of ash, and then its mount can use its reaction to make a melee weapon attack.
Reduce to Ash (Costs 3 Actions). The
Monsters
Van Richten’s Guide to Ravenloft
Intelligence saving throw or it can’t take a reaction until the end of its next turn. Moreover, on its next turn, the target must choose whether it gets a move, an action, or a bonus action; it gets only
minds or petrify the bodies of its victims.
Death’s Head Tree
In cursed wilds grow death’s head trees, awakened tree;awakened trees from which 2d6;{"diceNotation":"2d6","rollType":"roll
Monsters
Guildmasters’ Guide to Ravnica
equipment it is wearing or carrying.
While mounted and not incapacitated, the archon can’t be surprised, and both it and its mount gain advantage on Dexterity saving throws. If the archon is reduced to
0 hit points while riding its mount, the mount is reduced to 0 hit points as well.Multiattack. The archon makes two Hammer of Justice attacks.
Hammer of Justice. Melee Weapon Attack: +10
Zuggtmoy
Legacy
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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
Monsters
Guildmasters’ Guide to Ravnica
can see within 60 feet of him is reduced to 0 hit points, Rakdos gains 25 temporary hit points.
Innate Spellcasting. Rakdos’s spellcasting ability is Charisma (spell save DC 25). He can
charmed by him must use its reaction to move up to half its speed toward the creature closest to it that it can see, provided it isn’t already within 5 feet of that creature. It then must make
Monsters
Bigby Presents: Glory of the Giants
Hill Rebuff reaction.
The object bearing the rune has AC 15; 20 hit points; and immunity to necrotic, poison, and psychic damage. The object regains all its hit points at the end of every turn, but
it turns to dust if reduced to 0 hit points or when the giant dies. If the rune is destroyed, the giant can inscribe a hill rune on an object in its possession when it finishes a short or long rest
Monsters
Phandelver and Below: The Shattered Obelisk
":"roll", "rollAction":"Bite"} on a failure. On a successful save, the target is no longer poisoned. The target dies if its hit point maximum is reduced to 0. This reduction to the target’s hit
.
Mutates often gain psionic abilities, grow wings, become covered in otherworldly slime, or exhibit other unsettling traits. Specific mutated creatures are further described in appendix A.Poison
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
(Medicine) and Wisdom (Survival) checks have disadvantage.
Fungal Infestation. Molds and fungi grow on surfaces within 6 miles of the lair, even where they would normally find no purchase.
Mutating
Monsters
Mythic Odysseys of Theros
.
While mounted and not incapacitated, the archon can’t be surprised, and both it and its mount have advantage on Dexterity saving throws. If the archon is reduced to 0 hit points while riding its
mount, the mount is reduced to 0 hit points as well.
Radiant Rebirth (Recharges after a Long Rest). If the archon is reduced to 0 hit points, it regains 30 hit points and springs back to its feet
Monsters
Planescape: Adventures in the Multiverse
the flow of time, their horns grow with branching, rainbow-hued veins suggestive of time’s paths and possibilities.
Ancient time dragon;Ancient time dragons can create temporal gates connected
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
Monsters
Mordenkainen Presents: Monsters of the Multiverse
maximum is reduced by an amount equal to the damage taken. This reduction lasts until the target finishes a long rest. The target dies if its hit point maximum is reduced to 0.
Gaze. Demogorgon turns his
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
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
of every turn, but it turns to dust if reduced to 0 hit points or when the fomorian dies. If the rune is destroyed, the fomorian can inscribe a blood rune on an object in its possession when it
Monsters
Planescape: Adventures in the Multiverse
have horns that are barely more than nubs. As they master the flow of time, their horns grow with branching, rainbow-hued veins suggestive of time’s paths and possibilities.
Ancient time
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
Monsters
Fizban's Treasury of Dragons
. The dragon magically transforms into any creature that is Medium or Small, while retaining its game statistics (other than its size). This transformation ends if the dragon is reduced to 0 hit points
creature within 30 feet of it that it can see. The target must succeed on a DC 16 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach. If no
Monsters
Mordenkainen Presents: Monsters of the Multiverse
long rest. The target’s hit point maximum is reduced by an amount equal to half the poison damage taken. This reduction lasts until the poisoned condition is removed. The target dies if its hit
point maximum is reduced to 0.
Spellcasting. Geryon casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 21):
At will
Monsters
Princes of the Apocalypse
disappear if Ogrémoch is reduced to 0 hit points.Ogrémoch can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at
creatures standing on the ground in that radius must succeed on a DC 23 Dexterity saving throw or fall prone.
Create Gargoyle (Costs 3 Actions). Ogrémoch’s hit points are reduced by 50 as he
Monsters
Van Richten’s Guide to Ravenloft
Headless Summoning (Recharges after a Short or Long Rest). If the dullahan is reduced to 0 hit points, it doesn’t die or fall unconscious. Instead, it regains 97 hit points. In addition, it
use its reaction to make a melee attack.
Headless Wail (Costs 2 Actions). An echoing shriek issues from the dullahan’s headless stump. Each creature of the dullahan’s choice within 10
Yeenoghu
Legacy
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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
magic, creating one or more of the following effects:
Within 1 mile of the lair, large iron spikes grow out of the ground and stone surfaces. Yeenoghu impales the bodies of the slain on these spikes
Monsters
Eberron: Rising from the Last War
). Each creature within 60 feet of Rak Tulkhesh must succeed on a DC 24 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach. If no creatures
as they grow stronger, they gain more influence.
Some thirty overlords are bound in Khyber. Two are described here: Rak Tulkhesh and Sul Khatesh, both of whom remain imprisoned and can't take physical
Monsters
Mordenkainen Presents: Monsters of the Multiverse
or hyena that Yeenoghu can see can use its reaction to move up to its speed.
Regional Effects
The region containing Yeenoghu’s lair is warped by his magic, creating one or more of the
display of wasteful slaughter.
Spiky Terrain. Within 1 mile of the lair, large iron spikes grow out of the ground and stone surfaces. Yeenoghu impales the bodies of the slain on these spikes.
If
Monsters
Fizban's Treasury of Dragons
tadpoles infesting the creature are killed instantly, ending the effect on the creature.
If a Humanoid is reduced to 0 hit points while infested, the creature is stable but remains unconscious for 6d12
. Even the elder brain dragon’s breath weapon mutates during its transformation, becoming a stream of briny liquid roiling with illithid tadpoles. These tadpoles can swiftly slay victims and transform them into mind flayers, allowing the elder brain dragon to grow its own roving colony.Psychic
Monsters
Mordenkainen Presents: Monsters of the Multiverse
of the following effects:
Charnel Realm. The air is filled with the stench of rotting flesh, and buzzing flies grow thick within the region.
Undead Beasts. Dead Beasts periodically animate as
(Recharges after a Short or Long Rest). If this creature is reduced to 0 hit points, it immediately makes a DC 10 Constitution saving throw. If it succeeds, it is instead reduced to 1 hit point.
Aura
Monsters
Mordenkainen Presents: Monsters of the Multiverse
. 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
carrying. While reduced, the duergar is Tiny, reduces its weapon damage to 1, and makes attack rolls, ability checks, and saving throws with disadvantage if they use Strength. It gains a +5 bonus to all
Monsters
Mordenkainen Presents: Monsters of the Multiverse
long rest. The target’s hit point maximum is reduced by an amount equal to half the poison damage taken. This reduction lasts until the poisoned condition is removed. The target dies if its hit
point maximum is reduced to 0.
Spellcasting. Geryon casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 21):
At will
Monsters
Fizban's Treasury of Dragons
.
Change Shape. The dragon magically transforms into any creature that is Medium or Small, while retaining its game statistics (other than its size). This transformation ends if the dragon is reduced to 0
around a creature within 30 feet of it that it can see. The target must succeed on a DC 19 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach. If
Monsters
Bigby Presents: Glory of the Giants
Thunderous Clap action and Negate Spell reaction.
The mask bearing the cloud rune has AC 15; 45 hit points; and immunity to necrotic, poison, and psychic damage. The mask regains all its hit points at
the end of every turn, but it turns to dust if reduced to 0 hit points or when the giant dies. If the rune is destroyed, the giant can inscribe a cloud rune on a mask in its possession when it finishes
Magic Items
The Book of Many Things
death. You take 2d10 necrotic damage, and your hit point maximum is reduced by an amount equal to the damage taken. This effect can’t reduce your hit point maximum below 10 hit points. This
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
Monsters
Princes of the Apocalypse
on a failed save, or half as much damage on a successful one. A humanoid reduced to 0 hit points by this damage dies, and an undead shadow rises from its corpse and acts immediately after the dragon
twice as long as normal to traverse, since the plants grow thick and twisted, and the swamps are thick with reeking mud.
Water sources within 1 mile of the lair are supernaturally fouled. Enemies of the
Monsters
Fizban's Treasury of Dragons
caverns and complex tunnel systems. As they grow older, they continually renovate their lairs, using their tunneling abilities and command over stone.
Sapphire dragons eventually create dizzying
dragon took part in.A Sapphire Dragon’s Lair
Sapphire dragons make their homes in extensive cave systems. As they grow older, they make increasingly complex renovations to their lairs, using