checks with reactions

Arch-hag

Monsters Monster Manual

Escape"} days. When the hag teleports away, each creature within 60 feet of the space it left is cursed. Until the curse ends, a creature has Disadvantage on ability checks and saving throws, and the

hag’s next turn. The target can’t take Reactions until the curse ends. Spellcasting. The hag casts one of the following spells, requiring no Material components and using Charisma as the

Reduced-threat Stone Golem

Monsters Tales from the Yawning Portal

Weapons. The golem's weapon attacks are magical. Reduced Threat. This creature has -2 penalty on all ability checks and saving throws.Multiattack. The golem makes two slam attacks. Slam. Melee Weapon

. Each target must make a DC 15 Wisdom saving throw against this magic. On a failed save, a target can't use reactions, its speed is halved, and it can't make more than one attack on its turn. In

Quenthel Baenre

Monsters Out of the Abyss

cleric spell up to 9th level at will. Sunlight Sensitivity. While in sunlight, Quenthel has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight. Tentacle Rod

three tentacles, it must make a DC 15 Constitution saving throw. On a failure, the creature's speed is halved, it has disadvantage on Dexterity saving throws, and it can't use reactions for 1 minute

Thaxalia

Monsters Tales from the Yawning Portal

Reduced Threat. This creature has -2 penalty on all ability checks and saving throws.Bite. Melee Weapon Attack: +3;{"diceNotation":"1d20+3","rollType":"to hit","rollAction":"Bite"} to hit, reach 5 ft

targeted creature must succeed on a DC 14 Dexterity saving throw. On a failed save, the target’s speed is halved for 1 minute. In addition, the creature can’t take reactions, and it can take

Meenlock

Monsters Mordenkainen Presents: Monsters of the Multiverse

. Light Sensitivity. While in bright light, the meenlock has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.Claw. Melee Weapon Attack: +4;{"diceNotation":"1d20

and take actions and reactions as normal. This torment has no effect on a creature that is immune to the frightened condition. If the creature is susceptible and remains incapacitated for 1 hour, the

Drow Mother of Rebellion

Monsters Mordenkainen Presents: Monsters of the Multiverse

. While in sunlight, the drow has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.Multiattack. The drow makes two Demon Staff attacks or one Demon Staff attack

DC 15 Constitution saving throw or suffer the following effects for 1 minute: the target’s speed is halved, it has disadvantage on Dexterity saving throws, and it can’t use reactions

Star Spawn Grue

Monsters Mordenkainen Presents: Monsters of the Multiverse

’t use reactions, and it takes 10 (3d6);{"diceNotation":"3d6", "rollType":"damage", "rollAction":"Borem's Embrace", "rollDamageType":"fire"} fire damage at the start of each of its turns. The effect

a simple or martial weapon or a natural weapon, if it has one. The next creature hit by the touched weapon must succeed on a DC 15 Wisdom saving throw or have disadvantage on all ability checks. The

Star Spawn Mangler

Monsters Mordenkainen Presents: Monsters of the Multiverse

, steaming mud. While it is coated in this way, the target’s speed is halved, it can’t use reactions, and it takes 10 (3d6);{"diceNotation":"3d6", "rollType":"damage", "rollAction":"Borem's Embrace

succeed on a DC 15 Wisdom saving throw or have disadvantage on all ability checks. The affected creature can repeat the saving throw at the end of each minute, ending the effect on itself on a success

Cradle of the Frost Scion

Monsters Bigby Presents: Glory of the Giants

in the area without immunity or resistance to cold damage have disadvantage on Strength and Dexterity checks. Empowered Frost Giants. Frost giants within 1,000 feet of the scion gain a +7 bonus to

Mist", "rollDamageType":"cold"} cold damage and be unable to use reactions until the start of its next turn. The mist vanishes at the end of the cradle’s turn.

Reduced-threat Aboleth

Monsters Tales from the Yawning Portal

can see the creature. Reduced Threat. This creature has -2 penalty on all ability checks and saving throws.Multiattack. The aboleth makes three tentacle attacks. Tentacle. Melee Weapon Attack: +7

it is on a different plane of existence from the target. The charmed target is under the aboleth's control and can't take reactions, and the aboleth and the target can communicate telepathically with

Star Spawn Hulk

Monsters Mordenkainen Presents: Monsters of the Multiverse

, steaming mud. While it is coated in this way, the target’s speed is halved, it can’t use reactions, and it takes 10 (3d6);{"diceNotation":"3d6", "rollType":"damage", "rollAction":"Borem's

must succeed on a DC 15 Wisdom saving throw or have disadvantage on all ability checks. The affected creature can repeat the saving throw at the end of each minute, ending the effect on itself on a

Drow Matron Mother

Monsters Mordenkainen Presents: Monsters of the Multiverse

. While in sunlight, the drow has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.Multiattack. The drow makes two Demon Staff attacks or one Demon Staff attack

DC 15 Constitution saving throw or suffer the following effects for 1 minute: the target’s speed is halved, it has disadvantage on Dexterity saving throws, and it can’t use reactions

Star Spawn Larva Mage

Monsters Mordenkainen Presents: Monsters of the Multiverse

, steaming mud. While it is coated in this way, the target’s speed is halved, it can’t use reactions, and it takes 10 (3d6);{"diceNotation":"3d6", "rollType":"damage", "rollAction":"Borem's

must succeed on a DC 15 Wisdom saving throw or have disadvantage on all ability checks. The affected creature can repeat the saving throw at the end of each minute, ending the effect on itself on a

Zuggtmoy

Monsters Mordenkainen Presents: Monsters of the Multiverse

;t take the same lair action two rounds in a row: Rally Plants. Up to four Plant creatures that are friendly to Zuggtmoy and that Zuggtmoy can see can use their reactions to move up to their speed

(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

Star Spawn Seer

Monsters Mordenkainen Presents: Monsters of the Multiverse

halved, it can’t use reactions, and it takes 10 (3d6);{"diceNotation":"3d6", "rollType":"damage", "rollAction":"Borem's Embrace", "rollDamageType":"fire"} fire damage at the start of each of its

ability checks. The affected creature can repeat the saving throw at the end of each minute, ending the effect on itself on a success. Cult of Tyranthraxus, the Flamed One Radiant Flames (1/Day

Staggering Smite Legacy

Spells Player’s Handbook (2014)

. The target must make a Wisdom saving throw. On a failed save, it has disadvantage on attack rolls and ability checks, and can’t take reactions, until the end of its next turn.

Kuo-toa Monitor Legacy

Monsters Monster Manual (2014)

pinpoint such a creature that is moving. Slippery. The kuo-toa has advantage on ability checks and saving throws made to escape a grapple. Sunlight Sensitivity. While in sunlight, the kuo-toa has

disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.Multiattack. The kuo-toa makes one bite attack and two unarmed strikes. Bite. Melee Weapon Attack: +6

Curse of Insatiable Greed

spells

about leaving the location for extended periods of time. The creature has Disadvantage on Wisdom ability checks and saving throws. Stage 3. The cursed creature is driven to transform its hoard of

trinkets into a labyrinth of possessions and treasure. The cursed creature desires to remain in this lair. The creature can’t take Reactions. Culmination. The cursed creature twists into a deformed figure and becomes a Verminous Abomination.

"The Demogorgon"

Monsters Infernal Machine Rebuild

Two Heads. The ettin has advantage on Wisdom (Perception) checks and on saving throws against being blinded, charmed, deafened, frightened, stunned, and knocked unconscious. Wakeful. When one of the

its actions, reactions, and movement. Insanity Gaze. The target suffers the effect of the confusion spell without making a saving throw. The effect lasts until the start of the ettin’s next

Drow Matron Mother Legacy

Monsters Mordenkainen’s Tome of Foes

attack rolls, as well as on Wisdom (Perception) checks that rely on sight.Multiattack. The matron mother makes two demon staff attacks or three tentacle rod attacks. Demon Staff. Melee Weapon Attack: +10

effects for 1 minute: the target's speed is halved, it has disadvantage on Dexterity saving throws, and it can't use reactions. Moreover, on each of its turns, it can take either an action or a bonus

Ability Checks

Compendium - Sources->Dungeons & Dragons->Player's Handbook (2014)

Ability Checks In addition to roleplaying, ability checks are key in determining the outcome of an interaction. Your roleplaying efforts can alter an NPC’s attitude, but there might still be an

element of chance in the situation. For example, your DM can call for a Charisma check at any point during an interaction if he or she wants the dice to play a role in determining an NPC’s reactions. Other

Ability Checks

Compendium - Sources->Dungeons & Dragons->Basic Rules (2014)

Ability Checks In addition to roleplaying, ability checks are key in determining the outcome of an interaction. Your roleplaying efforts can alter an NPC’s attitude, but there might still be an

element of chance in the situation. For example, your DM can call for a Charisma check at any point during an interaction if he or she wants the dice to play a role in determining an NPC’s reactions. Other

Massive Damage

Compendium - Sources->Dungeons & Dragons->Dungeon Master’s Guide (2014)

creature is stunned until the end of its next turn. 6–7 The creature can’t take reactions and has disadvantage on attack rolls and ability checks until the end of its next turn. 8–10 The creature can’t take reactions until the end of its next turn.

Staggering Smite

Compendium - Sources->Dungeons & Dragons->Player's Handbook (2014)

this spell’s duration, your weapon pierces both body and mind, and the attack deals an extra 4d6 psychic damage to the target. The target must make a Wisdom saving throw. On a failed save, it has disadvantage on attack rolls and ability checks, and can’t take reactions, until the end of its next turn.

Thri-kreen Hunter

Compendium - Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Boo’s Astral Menagerie

match the color and texture of its surroundings, gaining advantage on Dexterity (Stealth) checks it makes to hide in those surroundings. Leap. The thri-kreen leaps up to 20 feet in any direction

, provided its speed isn’t 0. Reactions Parry. The thri-kreen adds 2 to its AC against one melee attack that would hit it. To do so, the thri-kreen must see the attacker and be wielding a melee weapon.

Pirate Captain

Compendium - Sources->Dungeons & Dragons->Ghosts of Saltmarsh

longsword attacks (included in the attack). Sea Legs. The captain has advantage on ability checks and saving throws to resist being knocked prone. Actions Multiattack. The captain makes two

Attack: +5 to hit, reach 5 ft., one target. Hit: 9 (1d8 + 5) slashing damage, or 10 (1d10 + 5) slashing damage if used with two hands. Reactions Shape Up, Ye Dog (2/day). Whenever a friendly

Duergar Warlord

Compendium - Sources->Dungeons & Dragons->Mordenkainen's Tome of Foes

duergar has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight. Actions Multiattack. The duergar makes three hammer or javelin attacks and uses Call to

weapon attacks (included in the attacks), and makes Strength checks and Strength saving throws with advantage. If the duergar lacks the room to become Large, it attains the maximum size possible in the

Injuries

Compendium - Sources->Dungeons & Dragons->Dungeon Master’s Guide (2014)

Injuries d20 Injury 1 Lose an Eye. You have disadvantage on Wisdom (Perception) checks that rely on sight and on ranged attack rolls. Magic such as the regenerate spell can restore the lost eye

. You fall prone after using the Dash action. You have disadvantage on Dexterity checks made to balance. Magic such as the regenerate spell can restore the lost appendage. 4 Limp. Your speed on foot is

3. Watchful Statues

Compendium - Sources->Dungeons & Dragons->Tyranny of Dragons

understands the world more accurately, gaining advantage on Intelligence checks for the next 24 hours. However, the character is also driven temporarily insane for 1 minute. An insane creature can’t take

actions or reactions, can’t understand what other creatures say, can’t read, and speaks only in gibberish. You control the creature’s movement, which is erratic.

Plasmoid Boss

Compendium - Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Boo’s Astral Menagerie

narrow as 1 inch wide, provided it is wearing and carrying nothing. It has advantage on ability checks it makes to initiate or escape a grapple. Hold Breath. The plasmoid can hold its breath for 1

), reach 10 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage. Reactions Uncanny Dodge. The plasmoid halves the damage that it takes from an attack that hits it. The plasmoid must be able to see the attacker.

Oak Truestrike

Compendium - Sources->Dungeons & Dragons->Acquisitions Incorporated

put him to sleep. Keen Hearing and Sight. Oak has advantage on Wisdom (Perception) checks that rely on hearing or sight. Actions Multiattack. Oak makes three attacks with his hooked daggers or

target. Hit: 6 (1d6 + 3) piercing damage. Reactions Return the Favor (3/day). When Oak takes damage from a melee weapon attack, he can make a hooked dagger attack.

3. Watchful Statues

Compendium - Sources->Dungeons & Dragons->Rise of Tiamat

accurately, gaining advantage on Intelligence checks for the next 24 hours. However, the character is also driven temporarily insane for 1 minute. An insane creature can’t take actions or reactions

Drelnza

Compendium - Sources->Dungeons & Dragons->Quests from the Infinite Staircase

in sunlight. While in sunlight, she has disadvantage on attack rolls and ability checks. Actions Multiattack. Drelnza makes one Bite attack and one Heretic attack. Bite. Melee Weapon Attack: +9

the target, or takes a bonus action to end the effect. Reactions Drelnza can take up to three reactions per round but only one per turn. Move. Immediately after a creature Drelnza can see ends

Drow Elite Warrior

Compendium - Sources->Dungeons & Dragons->Monster Manual (2014)

Sensitivity. While in sunlight, the drow has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight. Actions Multiattack. The drow makes two shortsword attacks

while poisoned in this way. The target wakes up if it takes damage or if another creature takes an action to shake it awake. Reactions Parry. The drow adds 3 to its AC against one melee attack that would hit it. To do so, the drow must see the attacker and be wielding a melee weapon.

"The Demogorgon"

Compendium - Sources->Dungeons & Dragons->Infernal Machine Rebuild

ettin has advantage on Wisdom (Perception) checks and on saving throws against being blinded, charmed, deafened, frightened, stunned, and knocked unconscious. Wakeful. When one of the ettin’s heads is

start of the ettin’s next turn. The ettin chooses how the charmed target uses its actions, reactions, and movement. Insanity Gaze. The target suffers the effect of the confusion spell without making a

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