course ring guide to have reaction

Ring of Evasion

Magic Items Dungeon Master’s Guide

This ring has 3 charges, and it regains 1d3 expended charges daily at dawn. When you fail a Dexterity saving throw while wearing the ring, you can take a Reaction to expend 1 charge to succeed on that save instead.

Rod of Absorption

Magic Items Dungeon Master’s Guide

While holding this rod, you can take a Reaction to absorb a spell that is targeting only you and doesn’t create an area of effect. The absorbed spell’s effect is canceled, and the spell

cast it are wasted. The rod can absorb and store up to 50 levels of energy over the course of its existence. Once the rod absorbs 50 levels of energy, it can’t absorb more. If you are targeted

Ring of Spell Turning

Magic Items Dungeon Master’s Guide

While wearing this ring, you have Advantage on saving throws against spells. If you succeed on the save for a spell of level 7 or lower, the spell has no effect on you. If that spell targeted only

you and didn’t create an area of effect, you can take a Reaction to deflect the spell back at the spell’s caster; the caster must make a saving throw against the spell using their own spell save DC.

Artus Cimber

Monsters Tomb of Annihilation

Guide to determine the hit points of an inanimate object if they become necessary. A former member of the Harpers, Artus Cimber is the keeper of the Ring of Winter. He found the ring in the jungles of

Special Equipment. Artus wears the Ring of Winter. He and the ring can't be targeted by divination magic or percieved through magical scrying sensors. While attuned to and wearing the ring, Artus

Manafret Cherryport

Monsters Waterdeep: Dragon Heist

, suggestion 3rd level (3 slots): counterspell, fireball, fly 4th level (3 slots): greater invisibility, ice storm 5th level (1 slot): cone of cold Teleporter Ring. Manafret wears a teleporter ring (see

blood (see “Poisons” in chapter 8 of the Dungeon Master’s Guide) into the stew before asking them to taste it and give him an honest critique.

Griffon Cavalry Rider

Monsters Waterdeep: Dragon Heist

","rollDamageType":"piercing"} piercing damage.Feather Fall. The rider wears a magic ring with which it can cast the feather fall spell on itself once as a reaction to falling. After the spell is cast, the

ring becomes nonmagical.The Griffon Cavalry is a special branch of the City Guard whose members are veteran soldiers trained to fly griffon mounts.

Ring of Winter

Magic Items Tomb of Annihilation

Guide). If it succeeds, the ring compels its wearer to cause undue harm to everyone and everything around it, in a cold-hearted attempt to incur the wrath of enemies and bring about the wearer&rsquo

immunity to cold damage and don’t suffer any ill effects from extreme cold (see chapter 5 of the Dungeon Master’s Guide). Magic. The Ring of Winter has 12 charges and

Ring of Amity

Magic Items Bigby Presents: Glory of the Giants

the Rune. When the bonded creature hits a target with an attack roll, you can use your reaction to invoke the ring’s rune if you are within 60 feet of the bonded creature. The bonded creature

This ring is carved from hematite and bears an engraving of the friend rune. When you first attune to this ring, you can touch one willing creature and form a magical bond between the two of you

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

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.

Daemogoth Titan

Monsters Strixhaven: A Curriculum of Chaos

the titan doesn’t heal.Daemogoth titans are towering monsters that blight the land around them. A daemogoth grows in power over the course of decades spent feeding on sorrow and draining life from

;Supernatural Gifts” in the Dungeon Master’s Guide). As long as the creature has the blessing, it must expend and roll two of its Hit Dice whenever it finishes a long rest. It takes

Graz'zt

Monsters Mordenkainen Presents: Monsters of the Multiverse

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

are made of stone or metal become highly reflective, as though polished to a shine. These surfaces become supernaturally mirrorlike. If Graz’zt dies, these effects fade over the course of 1d10

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

creature that succeeds on this saving throw can’t be affected by this regional effect again for 24 hours. If Yeenoghu dies, these effects fade over the course of 1d10;{"diceNotation":"1d10

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

hours. If Graz’zt dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Madness of Graz’zt If a creature goes mad in Graz’zt’s

Adult Time Dragon

Monsters Planescape: Adventures in the Multiverse

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

(your choice). Timelessness. Beasts, Humanoids, and Plants within 3 miles of the lair age only 1 year for every 10 years that pass. If the dragon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days.

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

effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Madness of Belashyrra If a creature goes mad in Belashyrra’s lair or while it can see the daelkyr, it gains

Adult Lunar Dragon

Monsters Spelljammer: Adventures in Space

’s Guide) taken from vessels that dared to invade the dragon’s territory. A lunar dragon can become incorporeal, but not to the extent that it can pass through other creatures or solid

of bludgeoning damage. If the dragon dies, the moaning stops, the moon devils dissipate, and the black frost disappears over the course of 1d10;{"diceNotation":"1d10","rollType":"roll","rollAction

Ancient Lunar Dragon

Monsters Spelljammer: Adventures in Space

the Astral Adventurer’s Guide) taken from vessels that dared to invade the dragon’s territory. A lunar dragon can become incorporeal, but not to the extent that it can pass through other

cold damage instead of bludgeoning damage. If the dragon dies, the moaning stops, the moon devils dissipate, and the black frost disappears over the course of 1d10;{"diceNotation":"1d10","rollType

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

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

;poisonous snakes and other venomous Beasts. If Demogorgon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days. Cultists of Demogorgon

Occultant Abacus

Magic Items Acquisitions Incorporated

within 5 feet of a creature killed within the past 24 hours, you can cast the augury spell. The course of action you inquire about with the spell does not need to have any connection to the dead creature

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

Baphomet Legacy

Monsters Out of the Abyss

be affected by this regional effect again for 24 hours. If Baphomet dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Madness of Baphomet If a

until cured. See the Dungeon Master’s Guide for more on madness. Madness of Baphomet d100 Flaw (lasts until cured) 01–20 “My anger consumes me. I can’t be

Orcus Legacy

Monsters Out of the Abyss

again for 24 hours. If Orcus dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Madness of Orcus If a creature goes mad in Orcus’s lair or

within line of sight of the demon lord, roll on the Madness of Orcus table to determine the nature of the madness, which is a character flaw that lasts until cured. See the Dungeon Master’s Guide

Juiblex

Monsters Mordenkainen Presents: Monsters of the Multiverse

of the following lair actions; it can’t take the same lair action two rounds in a row: Green Slime. A green slime (see the Dungeon Master’s Guide) appears on a spot on the ceiling that

, which is slick and sticks to anything that touches it. If Juiblex dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Cultists of Juiblex The Faceless

Juiblex Legacy

Monsters Out of the Abyss

Guide) appears on a spot on the ceiling that Juiblex chooses within the lair. The slime disintegrates after 1 hour. Regional Effects The region containing Juiblex’s lair is warped by its

regional effect again for 24 hours. If Juiblex dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Madness of Juiblex If a creature goes mad in Juiblex

Ancient Time Dragon

Monsters Planescape: Adventures in the Multiverse

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

area take 10 minutes or 2 hours (your choice). Timelessness. Beasts, Humanoids, and Plants within 3 miles of the lair age only 1 year for every 10 years that pass. If the dragon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days.

Demogorgon Legacy

Monsters Out of the Abyss

, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Madness of Demogorgon If a creature goes mad in Demogorgon’s lair or within line of sight of the

demon lord, roll on the Madness of Demogorgon table to determine the nature of the madness, which is a character flaw that lasts until cured. See the Dungeon Master’s Guide for more on

Fraz-Urb'luu Legacy

Monsters Out of the Abyss

’luu dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Madness of Fraz-Urb’luu If a creature goes mad in Fraz-Urb’luu’s lair or

’s Guide for more on madness. Madness of Fraz-Urb’luu d100 Flaw (lasts until cured) 01–20 “I never let anyone know the truth about my actions or

Baphomet

Monsters Mordenkainen Presents: Monsters of the Multiverse

frightened and disoriented, as though constantly under threat of being hunted, and might lash out or panic even when no visible threat is nearby. If Baphomet dies, these effects fade over the course of

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

Geryon (Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

deposits a traveler somewhere in Stygia. If Geryon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Cultists of Geryon Geryon grants his cultists special

(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

Yeenoghu

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

Yeenoghu dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days. Cultists of Yeenoghu Yeenoghu grants special abilities to his cultists. His

Zuggtmoy

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

Vegetation. Vegetation within 1 mile of the lair becomes infested with parasitic fungi, slowly mutating as it is overwhelmed. If Zuggtmoy dies, these effects fade over the course of 1d10

Geryon

Monsters Mordenkainen Presents: Monsters of the Multiverse

traveler somewhere in Stygia. If Geryon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Cultists of Geryon Geryon grants his cultists special

–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

Klauth

Monsters Storm King's Thunder

ring of cold resistance.Multiattack. Klauth can use his Frightful Presence. He then makes three attacks: one with his bite and two with his claws. Bite. Melee Weapon Attack: +18;{"diceNotation":"1d20

of elemental fire into the world to dwell nearby. If the dragon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days.FireCold

Adult Deep Dragon

Monsters Fizban's Treasury of Dragons

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

creatures are within reach, or the target can’t take a reaction, it takes 5 (1d10);{"diceNotation":"1d10", "rollType":"damage", "rollAction":"Commanding Spores", "rollDamageType":"psychic"} psychic

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