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Returning 35 results for 'know fails'.
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know family
Spells
Player’s Handbook
You magically sense the most direct physical route to a location you name. You must be familiar with the location, and the spell fails if you name a destination on another plane of existence, a
destination, you know how far it is and in what direction it lies. Whenever you face a choice of paths along the way there, you know which path is the most direct.
Magic Items
Dungeon Master’s Guide (2024)
spells.
Unknown Spell. As a Magic action, you can try to cast a cantrip that you don’t know. The cantrip must be on the Wizard spell list and have a casting time of an action, and you make a DC 10
Intelligence (Arcana) check. On a successful check, you cast the spell. On a failed check, the spell fails, and the action used to cast the spell is wasted. In either case, you can’t use this property again until you finish a Long Rest.
Magic Items
Dungeon Master’s Guide (2024)
amulet as a Spellcasting Focus for your Warlock spells.
Unknown Spell. As a Magic action, you can try to cast a cantrip that you don’t know. The cantrip must be on the Warlock spell list and have
a casting time of an action, and you make a DC 10 Intelligence (Arcana) check. On a successful check, you cast the spell. On a failed check, the spell fails, and the action used to cast it is wasted. In either case, you can’t use this property again until you finish a Long Rest.
Spells
Player’s Handbook
planes of existence, but if the target is on a different plane than you, there is a 5 percent chance that the message doesn’t arrive. You know if the delivery fails.
Upon receiving your message
, a creature can block your ability to reach it again with this spell for 8 hours. If you try to send another message during that time, you learn that you are blocked, and the spell fails.
Spells
Player’s Handbook
important details, amusing revelations, or even secret lore that has never been widely known. The more information you already know about the thing, the more precise and detailed the information you
receive is. That information is accurate but might be couched in figurative language or poetry, as determined by the DM.
If the famous thing you chose isn’t actually famous, you hear sad musical notes played on a trombone, and the spell fails.
Spells
Player’s Handbook
time on a turn or starts its turn there makes a Charisma saving throw. On a failed save, a creature can’t speak a deliberate lie while in the radius. You know whether a creature succeeds or
fails on this save.
An affected creature is aware of the spell and can avoid answering questions to which it would normally respond with a lie. Such a creature can be evasive yet must be truthful.
Hat of Wizardry
Legacy
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Magic Items
Xanathar's Guide to Everything
wizard spells.
You can try to cast a cantrip that you don’t know. The cantrip must be on the wizard spell list, and you must make a DC 10 Intelligence (Arcana) check. If the check succeeds
, you cast the spell. If the check fails, so does the spell, and the action used to cast the spell is wasted. In either case, you can’t use this property again until you finish a long rest.
Dark Shard Amulet
Legacy
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Magic Items
Xanathar's Guide to Everything
use the amulet as a spellcasting focus for your warlock spells.
You can try to cast a cantrip that you don’t know. The cantrip must be on the warlock spell list, and you must make a DC 10
Intelligence (Arcana) check. If the check succeeds, you cast the spell. If the check fails, so does the spell, and the action used to cast the spell is wasted. In either case, you can’t use this property again until you finish a long rest.
Monsters
Guildmasters’ Guide to Ravnica
","rollDamageType":"psychic"} psychic damage)
3/day each: blur, confusion, mirror image
1/day each: modify memory, Rary's telepathic bond
Legendary Resistance (3/Day). If Lazav fails a saving throw, he can
lying, know his alignment, or know his creature type. Creatures can telepathically communicate with Lazav only if he allows it.Multiattack. Lazav makes three shortsword attacks.
Shortsword. Melee
Magic Items
Baldur’s Gate: Descent into Avernus
addition, you know the exact location and type of all devils within 1,000 feet of you. You can telepathically communicate with a devil within range, or you can broadcast your thoughts to all devils
), which affects devils only. (The spell fails and the charge is wasted if you target any creature that’s not a devil.) If a devil can see you when you cast this spell on it, the devil knows you
Monsters
Mordenkainen Presents: Monsters of the Multiverse
Indomitable (3/Day). The warlord can reroll a saving throw it fails. It must use the new roll.
Survivor. The warlord regains 10 hit points at the start of its turn if it has fewer than half its hit
they fear us!”
6
“Weapons drawn! Spells at the ready!”
7
“To the Abyss with them!”
8
“You know what to do!”
Magic Items
Acquisitions Incorporated
stone, except that it has no matching stone and allows communication with Head Office, specific secretarians you know, and the secretarian nearest your location. You must succeed on a DC 15
burned through your gloves.
6
It has an obnoxious ringtone that you can’t work out how to change.
7
It fails to notify you of incoming messages except for a faint pulsating glow
Monsters
Spelljammer: Adventures in Space
to say, and the message can be understood by any creature that has an Intelligence score of 2 or higher.
Legendary Resistance (3/Day). If the zodar fails a saving throw, it can choose to succeed
each zodar has a specific mission and is relentless in its pursuit of the goal, but it reacts oddly to situations that don’t involve its mission because it doesn’t know what else to do
Monsters
The Book of Many Things
doesn’t function if Asteria has the incapacitated condition.
Legendary Resistance (3/Day). If Asteria fails a saving throw, she can choose to succeed instead.
Special Equipment. Asteria wears
the first Deck of Many Things. She doesn’t know why this is but surmises her life is tied to that deck; so long as it continues to exist, so will she. She has no way to prove this hypothesis
Monsters
Monstrous Compendium Vol. 4: Eldraine Creatures
Legendary Resistance (3/Day). If the Goose Mother fails a saving throw, it can choose to succeed instead.
Multiple Heads. The Goose Mother has five heads. Whenever the Goose Mother takes 25 or more
tell that these geese descend from a monstrous many-headed bird that dwells deep within the wilds. Though the knights of Eldraine consider its existence a myth, the folk of the wilds know that the
Monsters
Icewind Dale: Rime of the Frostmaiden
point in this form, each creature within 10 feet of her takes 10 cold damage at the start of each of her turns.
Legendary Resistance (1/Day in This Form). If Auril fails a saving throw, she can choose
to be cautious and avoid contact with other creatures that can harm her.
Auril’s worshipers know better than to disturb her self-imposed isolation. Terrible blizzards have cut off Icewind Dale
Monsters
Icewind Dale: Rime of the Frostmaiden
weather, detect thoughts, ice storm
Legendary Resistance (2/Day in This Form). If Auril fails a saving throw, she can choose to succeed instead.
Magic Resistance. Auril has advantage on saving throws
weak and vulnerable. In her self-inflicted weakened state, Auril is inclined to be cautious and avoid contact with other creatures that can harm her.
Auril’s worshipers know better than to
Monsters
Mordenkainen Presents: Monsters of the Multiverse
Infernal Despair. Each creature within 30 feet of Hutijin that isn’t a devil makes saving throws with disadvantage.
Legendary Resistance (3/Day). If Hutijin fails a saving throw, he can choose
rivals. Other archdevils know how much Hutijin despises mortals and have secretly disseminated the means to call him from the Nine Hells in the hope of distracting the archdevil long enough for them to
Monsters
The Book of Many Things
Legendary Resistance (3/Day). If the champion fails a saving throw, it can choose to succeed instead.Multiattack. The champion makes two Leeching Blade attacks and uses Hollow Void.
Leeching Blade
, might have been the first person to draw the Skull card from a Deck of Many Things and be slain by the avatar of death. Even Jyn doesn’t know for sure, as that was so long ago that she’s
Monsters
Icewind Dale: Rime of the Frostmaiden
.
Legendary Resistance (2/Day in This Form). If Auril fails a saving throw, she can choose to succeed instead.
Magic Resistance. Auril has advantage on saving throws against spells and other magical
that can harm her.
Auril’s worshipers know better than to disturb her self-imposed isolation. Terrible blizzards have cut off Icewind Dale from the rest of the world, and a shroud of mist
Monsters
Candlekeep Mysteries
Wisdom saving throw against this magic or become frightened until the end of Valin’s next turn. If the target fails the saving throw by 5 or more, it is also paralyzed for the same duration. A target
. Therefore, nothing surprises me.”
Ideal. “To know all things is the goal of the most powerful oracles. And I will be the most powerful oracle of all.”
Bond. “This temple was
Monsters
Fizban's Treasury of Dragons
Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon makes one Bite attack and two Claw attacks.
Bite. Melee Weapon Attack: +9
talk!
2
Are you comfortable? Can I tell your future for you? Just let me know what I can do for you, okay?
3
Jokes are as valuable as any gemstone and more fun to share.
4
My
Monsters
Fizban's Treasury of Dragons
Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon makes one Bite attack and two Claw attacks.
Bite. Melee Weapon Attack: +13
giant, let’s talk!
2
Are you comfortable? Can I tell your future for you? Just let me know what I can do for you, okay?
3
Jokes are as valuable as any gemstone and more fun to share
Fraz-Urb'luu
Legacy
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Monsters
Out of the Abyss
: mirage arcane, modify memory, project image
Legendary Resistance (3/Day). If Fraz-Urb’luu fails a saving throw, he can choose to succeed instead.
Magic Resistance. Fraz-Urb’luu has
’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
Monsters
Fizban's Treasury of Dragons
Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.
Shift Perception (1/Day). The dragon can cast hallucinatory terrain, requiring no spell components
know of places of power near their lairs and keep detailed records of how phenomena connected to those sites react to outside influences. They also avidly collect magic items and spells that create
Monsters
Fizban's Treasury of Dragons
Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.
Tunneler. The dragon can burrow through solid rock at half its burrowing speed and can leave a 20
of pitting them against fire giant rivals.
Hoarded Histories
Emerald dragons prize knowledge, particularly local histories that focus on magical events and individuals. They usually know of places
Monsters
Eberron: Rising from the Last War
Legendary Resistance (3/Day). If Illmarrow fails a saving throw, she can choose to succeed instead.
Magic Resistance. Illmarrow has advantage on saving throws against spells and other magical
is destroyed. Thus, even Erandis herself doesn’t know the location or form of her phylactery.
Restoring the Mark. Though she takes great pleasure in fighting the dragons and elves who destroyed
Monsters
Fizban's Treasury of Dragons
62,000 XP (124,000 XP total) for defeating the dragon turtle after its Blessing of the Sea activates.
Legendary Resistance (3/Day). If the dragon turtle fails a saving throw, it can choose to succeed
snippets of tunes I have overheard.
7
I swim alongside ships sailing through my domain, just out of arrow range, so they know I am watching.
8
I am fascinated by the politics of surface realms
Monsters
Fizban's Treasury of Dragons
Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.
Spider Climb. The dragon can climb difficult surfaces, including upside down on ceilings, without
cannot resist a game of dragonchess—which, I will have you know, my ancestors probably invented.
8
The sight of blood makes me queasy.
Sapphire Dragon Ideals
d6
Monsters
Fizban's Treasury of Dragons
Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon makes one Bite attack and two Claw attacks.
Bite. Melee Weapon Attack: +9
copper dragon’s inheritance in trust.
6
A deep dragon wants to know if rumors of a sea monster in an Underdark lake are true, so the dragon hires adventurers to investigate.
7
Two
Monsters
Fizban's Treasury of Dragons
Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon makes one Bite attack and two Claw attacks.
Bite. Melee Weapon Attack: +12
holding the copper dragon’s inheritance in trust.
6
A deep dragon wants to know if rumors of a sea monster in an Underdark lake are true, so the dragon hires adventurers to investigate
Monsters
Fizban's Treasury of Dragons
Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.
Spider Climb. The dragon can climb difficult surfaces, including upside down on ceilings, without
, I will have you know, my ancestors probably invented.
8
The sight of blood makes me queasy.
Sapphire Dragon Ideals
d6;{"diceNotation":"1d6","rollType":"roll","rollAction":"Ideal
Magic Items
Infernal Machine Rebuild
While wearing this crown, a character automatically fails any Intelligence (Investigation) check made to see through an illusion. An illusion that is touched still has its true nature revealed
. However, a character wearing a crown has such a strong sense that the illusion is real that they might not know which of their senses to believe.
If this crown is closely examined by a character who
Find the Path
Legacy
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Spells
Basic Rules (2014)
plane of existence, a destination that moves (such as a mobile fortress), or a destination that isn't specific (such as "a green dragon's lair"), the spell fails.
For the duration, as long as you are on
the same plane of existence as the destination, you know how far it is and in what direction it lies. While you are traveling there, whenever you are presented with a choice of paths along the way
Zone of Truth
Legacy
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Spells
Basic Rules (2014)
the first time on a turn or starts its turn there must make a Charisma saving throw. On a failed save, a creature can't speak a deliberate lie while in the radius. You know whether each creature
succeeds or fails on its saving throw.
An affected creature is aware of the spell and can thus avoid answering questions to which it would normally respond with a lie. Such a creature can be evasive in its answers as long as it remains within the boundaries of the truth.