master something with only activate fails for lasts

Detect Thoughts

Spells Player’s Handbook

You activate one of the effects below. Until the spell ends, you can activate either effect as a Magic action on your later turns. Sense Thoughts. You sense the presence of thoughts within 30 feet

, emotions, and something that looms large in its mind (such as a worry, love, or hate). On a successful save, the spell ends. Either way, the target knows that you are probing into its mind, and until

Mage Hand

Spells Player’s Handbook

A spectral, floating hand appears at a point you choose within range. The hand lasts for the duration. The hand vanishes if it is ever more than 30 feet away from you or if you cast this spell again

Magic action on your later turns, you can control the hand thus again. As part of that action, you can move the hand up to 30 feet. The hand can’t attack, activate magic items, or carry more than 10 pounds.

Hag Eye

Magic Items Dungeon Master’s Guide

the Hag Eye sees if the hag and the Hag Eye are on the same plane of existence. This effect lasts as long as the hag maintains Concentration. Multiple hags in the coven can see through the Hag Eye

the Incapacitated condition. If the hags take any other actions during this rite, the rite fails and ends.

Contagion

Spells Player’s Handbook

successes or failures. If the target succeeds on three of these saves, the spell ends on the target. If the target fails three of the saves, the spell lasts for 7 days on it. Whenever the Poisoned target

Ancient Copper Dragon

Monsters Monster Manual

Legendary Resistance (4/Day, or 5/Day in Lair). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon makes three Rend attacks. It can replace one attack with a

, not both. This effect lasts until the end of its next turn. Spellcasting. The dragon casts one of the following spells, requiring no Material components and using Charisma as the spellcasting

Adult Copper Dragon

Monsters Monster Manual

Legendary Resistance (3/Day, or 4/Day in Lair). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon makes three Rend attacks. It can replace one attack with a

, not both. This effect lasts until the end of its next turn. Spellcasting. The dragon casts one of the following spells, requiring no Material components and using Charisma as the spellcasting

Orb of Dragonkind

Magic Items Dungeon Master’s Guide

, freedom from the orb, to spread suffering in the world, to advance the worship of Tiamat, or something else the DM decides. Random Properties. An Orb of Dragonkind has the following random properties

(see the Dungeon Master’s Guide): 2 minor beneficial properties 1 minor detrimental property 1 major detrimental property Spells. The orb has 7 charges and regains 1d4 + 3 expended

Tsunami

Spells Player’s Handbook

A wall of water springs into existence at a point you choose within range. You can make the wall up to 300 feet long, 300 feet high, and 50 feet thick. The wall lasts for the duration. When the wall

creature must succeed on a Strength (Athletics) check against your spell save DC to move at all. If it fails the check, it can’t move. A creature that moves out of the wall falls to the ground.

Demilich

Monsters Monster Manual

Legendary Resistance (3/Day, or 4/Day in Lair). If the demilich fails a saving throw, it can choose to succeed instead. Undead Restoration. If the demilich is destroyed, it reforms and regains all

DC 20 Constitution saving throw or have its Hit Point maximum reduced by 1d4;{"diceNotation":"1d4", "rollType":"roll", "rollAction":"Enervating Domain"}. This reduction lasts until the creature

Glyph of Warding

Spells Player’s Handbook

triggers include opening that object or seeing the glyph. Once a glyph is triggered, this spell ends. You can refine the trigger so that only creatures of certain types activate it (for example, the

creatures or creates harmful objects or traps, they appear as close as possible to the intruder and attack it. If the spell requires Concentration, it lasts until the end of its full duration. Using a Higher

Deck of Many Things

Magic Items Dungeon Master’s Guide

. This enmity lasts until either you or the devil dies. A Question of Enmity Two of the cards in the Deck of Many Things can earn a character the enmity of another being. With the Flames card, the

an ally. As Dungeon Master, you should wait for a dramatically appropriate moment to reveal this enmity, leaving the adventurer guessing who is likely to become a betrayer. Fool. You have

Wish

Spells Player’s Handbook

wish for something not included in any of the other effects. To do so, state your wish to the DM as precisely as possible. The DM has great latitude in ruling what occurs in such an instance; the greater

the wish, the greater the likelihood that something goes wrong. This spell might simply fail, the effect you desire might be achieved only in part, or you might suffer an unforeseen consequence as a

Elemental Cataclysm

Monsters Monster Manual

). If the cataclysm fails a saving throw, it can choose to succeed instead. Siege Monster. The cataclysm deals double damage to objects and structures.Multiattack. The cataclysm makes two Elemental Burst

fills a 60-foot-radius Sphere centered on a point the cataclysm can see within 150 feet. The cloud lasts for 1 minute or until the cataclysm uses Cataclysmic Event again. Creatures entirely in the

Wand of Wonder

Magic Items Dungeon Master’s Guide

, Stinking Cloud. 21–25 Nothing happens at the chosen point of origin. Instead, you have the Stunned condition until the start of your next turn, believing something awesome just happened

, the creature repeats the save at the end of its next turn. On a successful save, the effect ends. On a failed save, the creature has the Petrified condition instead of the Restrained condition. The petrification lasts until the creature is freed by the Greater Restoration spell or similar magic.

Prismatic Wall

Spells Player’s Handbook

wall into a globe up to 30 feet in diameter centered on a point within range. The wall lasts for the duration. If you position the wall in a space occupied by a creature, the spell ends instantly

end of each of its turns. If it successfully saves three times, the condition ends. If it fails three times, it has the Petrified condition until it is freed by an effect like the Greater Restoration

Mythallar Cloak

Magic Items Netheril’s Fall

cloak, you can take a Bonus Action and expend 1 charge to activate the cloak’s magic. The magic lasts for 1 minute or until you end it early (no action required). While the cloak’s magic

Doomtide

Spells Forgotten Realms: Heroes of Faerûn

You create a 20-foot-radius Sphere of inky fog within range. The fog is magical Darkness and lasts for the duration or until a strong wind (such as the one created by the Gust of Wind spell

this casting contributes to another casting of Doomtide as a Circle spell. When the spell is cast, each secondary caster must expend a level 3+ spell slot; otherwise, the spell fails.

Crown of Horns

Magic Items Forgotten Realms: Adventures in Faerûn

powerful Undead scions. Should a wearer prove unworthy of this honor, the crown teleports away to find a new mortal to corrupt for its master. Cursed. The crown is cursed. Attuning to the crown extends

effect is immune to it for 1 minute, after which it can be affected again. The aura is inactive while you have the Incapacitated condition. You can activate or deactivate the aura as a Bonus Action

Valindra Shadowmantle

Monsters Forgotten Realms: Adventures in Faerûn

Legendary Resistance (4/Day or 5/Day in Lair). If Valindra fails a saving throw, she can choose to succeed instead. Spirit Gem. If destroyed, Valindra re-forms in 1d10;{"diceNotation":"1d10

ability as Spellcasting. The spell lasts until Valindra drops to 30 Hit Points or fewer or uses her Life-Rending Gaze Legendary Action. Intelligence (Investigation) checks made to discern her true appearance are made with Disadvantage.

Dragonborn of Tiamat

Monsters Fizban's Treasury of Dragons

Legendary Resistance (1/Day). If the dragonborn fails a saving throw, it can choose to succeed instead.Multiattack. The dragonborn makes two Greataxe attacks. Greataxe. Melee Weapon Attack: +8

itself on a success.Champions of the dragon queen are often called Talons of Tiamat. They work tirelessly to free their master from her imprisonment in Avernus, and Tiamat grants these pawns immense

Forest Master

Monsters Monstrous Compendium Vol. 2: Dragonlance Creatures

Legendary Resistance (2/Day). If the Forest Master fails a saving throw, he can choose to succeed instead. Magic Resistance. The Forest Master has advantage on saving throws against spells and other

. The wall of briars lasts until the start of the Forest Master’s next turn. The wall blocks line of sight and counts as difficult terrain for all creatures except the Forest Master. The first time

Drowned Master

Monsters Ghosts of Saltmarsh

maximum to 0. This reduction lasts until the target finishes a long rest. On a failed save, the target also contracts bluerot (see the “Bluerot” sidebar). Necrotic Ink (Recharge 5–6). The drowned master

Bound Together. The drowned master shares its mind with every other drowned one within 1 mile of it, and can communicate its thoughts and observations to them instantaneously and without limitation

Homunculus Legacy

Monsters Basic Rules (2014)

Telepathic Bond. While the homunculus is on the same plane of existence as its master, it can magically convey what it senses to its master, and the two can communicate telepathically.Bite. Melee

throw or be poisoned for 1 minute. If the saving throw fails by 5 or more, the target is instead poisoned for 5 (1d10);{"diceNotation":"1d10","rollType":"roll","rollAction":"Bite"} minutes and unconscious while poisoned in this way.Poison

Gazer

Monsters Mordenkainen Presents: Monsters of the Multiverse

follows its creator like a devoted, aggressive puppy, and sometimes small packs of these creatures patrol their master’s lair for vermin to kill and lone creatures to harass. A gazer can’t

prey. A gazer might follow the folk in its territory, noisily mimicking their speech and generally being a nuisance, until they leave the area, but it flees if confronted by something it can’t

Corrupted Avatar of Lurue

Monsters Candlekeep Mysteries

damage. If the target is a humanoid, it must succeed on a DC 13 Wisdom saving throw or be transformed into a wolf under the avatar’s control. This transformation lasts for 1 hour, or until the

activate, use, wield, or otherwise benefit from any of its equipment.In normal circumstances, the avatar of Lurue is a breathtaking sight; her silver, stardust-like mane, her shimmering hooves, and her

Dyrrn

Monsters Eberron: Rising from the Last War

each time it fails the saving throw for this lair action. The target dies if its Intelligence score is reduced to 0. The reduction lasts until the target finishes a short or long rest. Regional

character flaw that lasts until cured. Chapter 8 of the Dungeon Master’s Guide has more information on madness. Madness of Dyrrn d6 Flaw (lasts until cured) 1 “There&rsquo

Maddgoth's Homunculus

Monsters Waterdeep: Dungeon of the Mad Mage

Telepathic Bond. While the homunculus is on the same plane of existence as its master, it can magically convey what it senses to its master, and the two can communicate telepathically.Bite. Melee

","rollDamageType":"piercing"} piercing damage, and the target must succeed on a DC 10 Constitution saving throw or be poisoned for 1 minute. If the saving throw fails by 5 or more, the target is instead

Bodak Legacy

Monsters Volo's Guide to Monsters

Aura of Annihilation. The bodak can activate or deactivate this feature as a bonus action. While active, the aura deals 5 necrotic damage to any creature that ends its turn within 30 feet of the

saving throw if the bodak isn't incapacitated and can see the creature. If the saving throw fails by 5 or more, the creature is reduced to 0 hit points, unless it is immune to the frightened condition

Mage Hand Legacy

Spells Basic Rules (2014)

A spectral, floating hand appears at a point you choose within range. The hand lasts for the duration or until you dismiss it as an action. The hand vanishes if it is ever more than 30 feet away from

open container, or pour the contents out of a vial. You can move the hand up to 30 feet each time you use it. The hand can't attack, activate magic items, or carry more than 10 pounds.

Belashyrra

Monsters Eberron: Rising from the Last War

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

it. It can use its Eye Ray through any creature within 120 feet of it, as though it were in that creature’s space. Legendary Resistance (3/Day). If Belashyrra fails a saving throw, it can

Master Thief

Monsters Mordenkainen Presents: Monsters of the Multiverse

half damage if it fails, provided the thief isn’t incapacitated.Multiattack. The thief makes three Shortsword or Shortbow attacks. Shortsword. Melee Weapon Attack: +7;{"diceNotation":"1d20+7

attack that hits it. The thief must be able to see the attacker.Master thieves are known for perpetrating daring heists. They tend to develop a romanticized reputation. A master thief might &ldquo

Thessalheart Construct

Monsters Infernal Machine Rebuild

Telepathic Bond. While the construct is on the same plane of existence as its master, it can magically convey what it senses to its master, and the two can communicate telepathically.Claws. Melee

throw or be poisoned for 1 minute. If the saving throw fails by 5 or more, the target is instead poisoned for 5 (1d10);{"diceNotation":"1d10","rollType":"roll","rollAction":"Claws"} minutes and

Boneclaw

Monsters Mordenkainen Presents: Monsters of the Multiverse

Rejuvenation. While its master lives, a destroyed boneclaw gains a new body in 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Hours"} hours, with all its hit points. The new body

appears within 1 mile of the boneclaw’s master. Unusual Nature. The boneclaw doesn’t require air, food, drink, or sleep.Multiattack. The boneclaw makes two Piercing Claw attacks. Piercing

Giant Coral Snake

Monsters Ghosts of Saltmarsh

begins to hallucinate and is afflicted with a short-term madness effect (determined randomly or by the DM; see “Madness” in chapter 8 of the Dungeon Master’s Guide). The effect lasts 10

Gazer (Familiar Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

Familiar. The gazer can serve another creature as a familiar, forming a telepathic bond with its willing master, provided that the master is at least a 3rd-level spellcaster. While the two are bonded

, the master can sense what the gazer senses as long as they are within 1 mile of each other. If its master causes it physical harm, the gazer will end its service as a familiar, breaking the

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