before before discern creatures reaction

Net Legacy

Equipment

has no effect on creatures that are formless, or creatures that are Huge or larger. A creature can use its action to make a DC 10 Strength check, freeing itself or another creature within its reach on a

success. Dealing 5 slashing damage to the net (AC 10) also frees the creature without harming it, ending the effect and destroying the net. When you use an action, bonus action, or reaction to

Shield of the Cavalier

Magic Items Dungeon Master’s Guide

appears, any creatures or objects not fully contained within it are pushed into the nearest unoccupied spaces outside it. The attack or area of effect that triggered the Reaction has no effect on creatures

directly away from yourself. If the creature is your size or smaller, you can also knock it down, giving it the Prone condition. Protective Field. As a Reaction, when you or an ally you can see

Detect Thoughts

Spells Player’s Handbook

of yourself that belong to creatures that know languages or are telepathic. You don’t read the thoughts, but you know that a thinking creature is present. The spell is blocked by 1 foot of stone

on your next turn, you can try to probe deeper into the target’s mind. If you probe deeper, the target makes a Wisdom saving throw. On a failed save, you discern the target’s reasoning

Ioun Stone

Magic Items Dungeon Master’s Guide

Stones orbiting your head at the same time. Each Ioun Stone orbiting your head is considered to be an object you are wearing. The orbiting stone avoids contact with other creatures and objects, adjusting

its orbit to avoid collisions and thwarting all attempts by other creatures to attack or snatch it. As a Utilize action, you can seize and stow any number of Ioun Stones orbiting your head. If your

Devil Mask

Equipment

wearing a Devil Mask, other creatures have Disadvantage on Intelligence (Investigation) and Wisdom (Insight) checks made to discern your true identity or intentions.

Greater Mark of Passage

Feats Eberron: Forge of the Artificer

feat to cast Misty Step without a spell slot, you can also choose up to two willing creatures you can see within 30 feet of yourself before you teleport. Each target can then take a Reaction to also teleport up to 30 feet to an unoccupied space it can see.

Lordly Resolve

Feats Forgotten Realms: Heroes of Faerûn

. Standard Bearer. As a Bonus Action, choose up to three creatures within 60 feet of yourself that can see you. Each target can immediately take a Reaction to right itself and end the Prone condition

Valindra Shadowmantle

Monsters Forgotten Realms: Adventures in Faerûn

and using the same spellcasting ability as her Spellcasting action. Apathy. Creatures within 1 mile of the lair that aren’t Undead have Disadvantage on Death Saving Throws and Initiative rolls

. Thirst for Knowledge. Within 1 mile of the lair, creatures have Advantage on Intelligence checks made when they take the Study action. If Valindra dies or moves her lair elsewhere, these effects end

Aberrant Dragonmark

Feats Eberron: Forge of the Artificer

take a Reaction to roll 1d4 and add the number rolled to the save, potentially turning the failure into a success. Once you’ve used this benefit, you can’t use it again until you finish a

Temporary Hit Points equal to the number rolled. If you roll an odd number, one creature within 30 feet of you (not including you) takes Force damage equal to the number rolled. If no other creatures are in range, you take the damage.

Spellfire Storm

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

. When you cast this spell, you can designate creatures to be unaffected by it. Casting as a Circle Spell. In addition to the spell’s usual components, you must provide a special component (a

Gas Spore Legacy

Monsters Monster Manual (2014)

","rollType":"damage","rollDamageType":"poison"} poison damage and become infected with a disease on a failed save. Creatures immune to the poisoned condition are immune to this disease. Spores invade an

. Eerie Resemblance. The gas spore resembles a beholder. A creature that can see the gas spore can discern its true nature with a successful DC 15 Intelligence (Nature) check.Touch. Melee Weapon Attack

Geonid

Monsters The Tortle Package

. Geonids can attune to stone in a way that lets them discern what other creatures have been in the area recently. Geonids use this ability to track prey and to determine whether other creatures have

. The geonid touches a stone object or surface and knows what types of creatures have been within 10 feet of that stone in the past 24 hours. The geonid can also determine the number of creatures of

Aurelia

Monsters Guildmasters’ Guide to Ravnica

, Aurelia must see the attacker and be wielding a melee weapon. Unyielding. When Aurelia is subjected to an effect that would move her, knock her prone, or both, she can use her reaction to be neither

. Aurelia regains spent legendary actions at the start of her turn. Command Allies. Aurelia chooses up to three creatures she can see within 30 feet of her. If a chosen creature can see or hear

Allip Legacy

Monsters Mordenkainen’s Tome of Foes

Incorporeal Movement. The allip can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10);{"diceNotation":"1d10","rollType":"damage","rollAction":"I

three creatures it can see within 60 feet of it. Each target must succeed on a DC 14 Wisdom saving throw, or it takes 7 (1d8 + 3);{"diceNotation":"1d8+3","rollType":"damage","rollAction":"Whispers of

Mage Slayer Legacy

Feats Player’s Handbook (2014)

You have practiced techniques useful in melee combat against spellcasters, gaining the following benefits: When a creature within 5 feet of you casts a spell, you can use your reaction to make a

melee weapon attack against that creature. When you damage a creature that is concentrating on a spell, that creature has disadvantage on the saving throw it makes to maintain its concentration. You have advantage on saving throws against spells cast by creatures within 5 feet of you.

Dominate Monster Legacy

Spells Basic Rules (2014)

You attempt to beguile a creature that you can see within range. It must succeed on a Wisdom saving throw or be charmed by you for the duration. If you or creatures that are friendly to you are

do. 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

Adult Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

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

1 Understanding. True power comes from the ability to discern other creatures’ motivations better than they can discern yours. (Any) 2 Kindred. All dragons are kin to one another

Duplicitous Manuscript

Magic Items Tasha’s Cauldron of Everything

book. The new spell must be of the illusion school. When a creature you can see makes an Intelligence (Investigation) check to discern the true nature of an illusion spell you cast, or makes a saving

throw against an illusion spell you cast, you can use your reaction and expend 1 charge to impose disadvantage on the roll.

Hoard Scarab

Monsters Fizban's Treasury of Dragons

succeed on a DC 18 Intelligence (Investigation) check to discern that the scarab is animate.Bite. Melee Weapon Attack: +5;{"diceNotation":"1d20+5", "rollType":"to hit", "rollAction":"Bite"} to hit

disadvantage on attack rolls until the start of its next turn.Hoard scarabs are beetle-like creatures that, through some feat of natural adaptation or alchemical ingenuity, blend in perfectly among piles of

Echo of Demogorgon

Monsters Bigby Presents: Glory of the Giants

resounds with demonic magic, sowing discord and confusion around them. As the echo’s monstrous heads roar and bite at each other, nearby creatures are racked with psychic pain or join in the ruckus

throw or suffer one of the following effects of the echo’s choice: Confused Reaction. The target must use its reaction to make a melee attack against another creature of the echo’s

Beast Whistle

Equipment

This bone whistle is carved in the shape of a gargath. When blown, it produces a high-pitched sound that can only be heard clearly by certain creatures. When you blow this whistle, any beast within

100 feet of you that hears it can discern its distance from and direction to you. Friendly beasts can be trained to understand signals given with this whistle, and if you spend at least 24 hours

Egg Hunter Adult

Monsters Fizban's Treasury of Dragons

hasn't observed the egg hunter move or act, that creature must succeed on a DC 18 Intelligence (Investigation) check to discern that the egg hunter is animate. Dragons have disadvantage on this

in a nest tended by a dragon or other creatures. If an egg hunter is discovered, it releases spores that make other creatures lethargic, allowing it to scurry to safety. If things turn dire, the egg

Dominate Beast Legacy

Spells Basic Rules (2014)

You attempt to beguile a beast that you can see within range. It must succeed on a Wisdom saving throw or be charmed by you for the duration. If you or creatures that are friendly to you are fighting

. 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

Dominate Person Legacy

Spells Basic Rules (2014)

You attempt to beguile a humanoid that you can see within range. It must succeed on a Wisdom saving throw or be charmed by you for the duration. If you or creatures that are friendly to you are

. 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

Deep Dragon Wyrmling Legacy

Monsters Fizban's Treasury of Dragons

"} Ideal 1 Understanding. True power comes from the ability to discern other creatures’ motivations better than they can discern yours. (Any) 2 Kindred. All dragons are kin to one

Dragon Personality Traits d8;{"diceNotation":"1d8","rollType":"roll","rollAction":"Trait"} Trait 1 I will not risk injury at the hands of weaker creatures—especially while I can

Ancient Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

no creatures are within reach, or the target can’t take a reaction, it takes 11 (2d10);{"diceNotation":"2d10", "rollType":"damage", "rollAction":"Commanding Spores", "rollDamageType":"psychic

1 Understanding. True power comes from the ability to discern other creatures’ motivations better than they can discern yours. (Any) 2 Kindred. All dragons are kin to one another, and

Shemshime

Monsters Candlekeep Mysteries

pounds. Incorporeal Movement. Shemshime can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10);{"diceNotation":"1d10","rollType":"damage","rollAction

. Shemshime chooses up to two creatures it can see within 60 feet of it. Each target must succeed on a DC 13 Wisdom saving throw, or that target takes 7 (1d8 + 3);{"diceNotation":"1d8+3","rollType

Young Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

":"1d6","rollType":"roll","rollAction":"Ideal"} Ideal 1 Understanding. True power comes from the ability to discern other creatures’ motivations better than they can discern yours

hands of weaker creatures—especially while I can turn them against one another and have them fight in my stead. 2 It is difficult for anyone not of dragonkind to penetrate the twisting

Sentinel Legacy

Feats Player’s Handbook (2014)

0 for the rest of the turn. Creatures provoke opportunity attacks from you even if they take the Disengage action before leaving your reach. When a creature within 5 feet of you makes an attack

against a target other than you (and that target doesn't have this feat), you can use your reaction to make a melee weapon attack against the attacking creature.

Yggdrasti

Monsters Monstrous Compendium Vol. 1: Spelljammer Creatures

creatures, or eight Tiny creatures. A creature inside a cavity has three-quarters cover against attacks and other effects that originate outside the cavity. The yggdrasti’s cavities aren’t

, if a creature hasn’t observed the rooted yggdrasti move or act, that creature must succeed on a DC 18 Intelligence (Investigation) check to discern that the yggdrasti is animate. Lightning

Tasha's Mind Whip

Spells Tasha’s Cauldron of Everything

reaction until the end of its next turn. Moreover, on its next turn, it must choose whether it gets a move, an action, or a bonus action; it gets only one of the three. On a successful save, the

creature for each slot level above 2nd. The creatures must be within 30 feet of each other when you target them.

Caradoc

Monsters Dragonlance: Shadow of the Dragon Queen

himself. The target must succeed on a DC 15 Wisdom saving throw, or the target must immediately use its reaction to make a melee attack against another creature of Caradoc’s choice (wasting its reaction if there are no other creatures within reach).

must succeed on a DC 15 Charisma saving throw or vanish and reappear in an unoccupied space within the keep. Incorporeal Movement. Caradoc can move through other creatures and objects as if they were

Leprechaun

Monsters Quests from the Infinite Staircase

magically gifts the target a measure of luck. The creature gains the leprechaun’s Astonishing Luck reaction. The creature can use the reaction three times, after which this gift goes away. The

. They delight in pranking such foolish creatures or pilfering from them in return. Leprechauns take pride in their appearances, dressing in dapper outfits that typically feature red fabrics, gleaming

Groff

Monsters Strixhaven: A Curriculum of Chaos

succeed on a DC 18 Intelligence (Investigation) check to discern that the groff isn’t an ordinary moss-covered bog patch. Hold Breath. The groff can hold its breath for up to 1 hour.Multiattack

surface. These shaggy swamp creatures have canine faces and glowing blue eyes, and they are ravenous carnivores—with pest mascot;pest mascots being their favorite food. A handful of more intrepid

Razorvine Blight

Monsters Planescape: Adventures in the Multiverse

on a DC 18 Intelligence (Investigation) check to discern that the blight is animate. Spider Climb. The blight can climb difficult surfaces, including upside down on ceilings, without needing to make

on a successful one. If at least one of the creatures that failed this save isn’t a Construct or an Undead, the blight regains 9 hit points.Travelers of Sigil and the Lower Planes take care to

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