checks where round

Rubblebelt Stalker

Monsters Guildmasters’ Guide to Ravnica

Ambusher. In the first round of a combat, the stalker has advantage on attack rolls against any creature that hasn’t taken a turn yet. Nimble Escape. The stalker can take the Disengage or Hide

action as a bonus action on each of its turns. Ruin Dweller. The stalker has advantage on Dexterity (Stealth) checks made to hide in ruins, and its speed is not reduced in difficult terrain composed

Reduced-threat Gray Ooze

Monsters Tales from the Yawning Portal

damage. The ooze can eat through 2-inch-thick, nonmagical metal in 1 round. False Appearance. While the ooze remains motionless, it is indistinguishable from an oily pool or wet rock. Reduced Threat

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

Huge Gray Ooze

Monsters Waterdeep: Dungeon of the Mad Mage

damage. The ooze can eat through 2-inch-thick, nonmagical metal in 1 round. False Appearance. While the ooze remains motionless, it is indistinguishable from an oily pool or wet rock. Enlarge

(Recharges after a Short or Long Rest). For 1 minute, the ooze magically increases in size. While enlarged, the ooze is Gargantuan, doubles its damage dice with its pseudopod attack, and makes Strength checks

Reduced-threat Black Pudding

Monsters Tales from the Yawning Portal

hits the pudding is destroyed after dealing damage. The pudding can eat through 2-inch-thick, nonmagical wood or metal in 1 round. Spider Climb. The pudding can climb difficult surfaces, including

upside down on ceilings, without needing to make an ability check. Reduced Threat. This creature has -2 penalty on all ability checks and saving throws.Pseudopod. Melee Weapon Attack: +3;{"diceNotation

Demogorgon

Monsters Mordenkainen Presents: Monsters of the Multiverse

initiative count 20 of the next round. Illusory Duplicate. Demogorgon creates an illusory duplicate of himself, which appears in his space and lasts until initiative count 20 of the next round. On his turn

’s lair is warped by his magic, creating one or more of the following effects: Beguiling Realm. Within 6 miles of the lair, all Charisma (Persuasion) and Charisma (Performance) checks have

Dracophage Subject

Monsters Dragonlance: Shadow of the Dragon Queen

slaad tadpole. In the 24-hour period before the tadpole is born, the host feels unwell; its speed is halved; and it has disadvantage on attack rolls, ability checks, and saving throws. At birth, the

tadpole chews its way through vital organs and out of the host’s chest in 1 round, killing the host in the process. If the disease is cured before the tadpole’s emergence, the tadpole

Gorka Tharn

Monsters Waterdeep: Dungeon of the Mad Mage

its damage dice with its Rotting Fist attack, and makes Strength checks and Strength saving throws with advantage. If the mummy lord lacks the room to become Large, it attains the maximum size

living creature within 120 feet of it until initiative count 20 on the next round. Each undead in the lair has advantage on saving throws against effects that turn undead until initiative count 20 on the

Olhydra

Monsters Princes of the Apocalypse

saving throw or be pulled up to 20 feet into the water and knocked prone. Water within 120 feet of Olhydra becomes murky and opaque until initiative count 20 of the next round. A creature with

round. Creatures and objects within or beyond the fog are heavily obscured. A creature that enters the freezing cloud for the first time on a turn or starts its turn there takes 10 (3d6);{"diceNotation

Juiblex

Monsters Mordenkainen Presents: Monsters of the Multiverse

after 1 round. Any creature that starts its turn in the burning slime takes 22 (4d10);{"diceNotation":"4d10","rollType":"damage","rollAction":"Slippery Slime","rollDamageType":"fire"} fire damage. Sticky

check. The slime lasts for 1 hour or until it is burned away with fire. If the slime is set on fire, it burns away after 1 round. Any creature that starts its turn in the burning slime takes 22 (4d10

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

action two rounds in a row: Perceive Interlopers. The drow projects her mind throughout her lair, marking any potential threats against her or her retinue. Until initiative count 20 of the next round

Umbraxakar

Monsters Waterdeep: Dungeon of the Mad Mage

Sensitivity. While in sunlight, the dragon has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.Multiattack. The dragon can use its Frightful Presence. It then

cloud spell. The fog lasts until initiative count 20 on the next round. A thunderclap originates at a point the dragon can see within 120 feet of it. Each creature within a 20-foot radius centered on

Ancient Moonstone Dragon

Monsters Fizban's Treasury of Dragons

or be banished to a harmless demiplane until initiative count 20 on the next round. While there, the target is stunned. When the effect ends, the target reappears in the space it left or in the

Intelligence saving throw or dance until initiative count 20 on the following round. The dancing creature is incapacitated and must use all its movement to dance. Disorienting Visions. Disorienting illusory

Adult Moonstone Dragon

Monsters Fizban's Treasury of Dragons

succeed on a DC 20 Wisdom saving throw or have disadvantage on ability checks until initiative count 20 on the following round. Regional Effects The region surrounding a legendary moonstone dragon

round. While there, the target is stunned. When the effect ends, the target reappears in the space it left or in the nearest unoccupied space. Compulsive Dance. The dragon targets a creature it can

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

any potential threats against her or her retinue. Until initiative count 20 of the next round, hostile creatures within the lair can’t become hidden from her and gain no benefit from the

Adult Crystal Dragon

Monsters Fizban's Treasury of Dragons

dragon until initiative count 20 on the next round. A creature charmed in this way obeys to the best of its ability any command the dragon issues that isn’t directly harmful to the creature. Ice

round. Regional Effects The region surrounding a legendary crystal dragon’s lair is altered by the dragon's magic, creating one or more of the following effects: Clear Skies. The skies above

Ancient Crystal Dragon

Monsters Fizban's Treasury of Dragons

must succeed on a DC 15 Wisdom saving throw or be charmed by the dragon until initiative count 20 on the next round. A creature charmed in this way obeys to the best of its ability any command the

the glow around any creature fades on initiative count 20 on the next round. Regional Effects The region surrounding a legendary crystal dragon’s lair is altered by the dragon's magic

Hierophant Medusa

Monsters The Book of Many Things

on initiative count 20 on the following round. Sudden Stonework. The medusa creates a wall of stone on a solid surface it can see within the lair. The wall can be up to 60 feet long, 20 feet high

creatures when viewed from the corner of the eye or through dim light or fog. Gathered Knowledge. Within the lair, creatures have advantage on ability checks made to discover or recall information

Iggwilv's Cauldron

Magic Items The Wild Beyond the Witchlight

—eight of each animal. In either form, the cauldron is roughly 3 feet in diameter and has a 2-foot-wide mouth, a round lid with a molded handle at the top, and eight clawed feet for stability. The

be aged to the point of decrepitude. In this state, the creature’s speed is halved, the range of its vision and hearing is reduced to 30 feet, and it has disadvantage on all ability checks

Adult Topaz Dragon

Monsters Fizban's Treasury of Dragons

", "rollDamageType":"necrotic"} necrotic damage and is weakened until the end of its next turn. A weakened creature has disadvantage on Strength-based ability checks and Strength saving throws, and the creature

one creature within range of the dragon’s telepathy. The creature must succeed on a DC 15 Wisdom saving throw or be charmed by the dragon until initiative count 20 on the next round. A creature

Ancient Topaz Dragon

Monsters Fizban's Treasury of Dragons

", "rollDamageType":"necrotic"} necrotic damage and is weakened until the end of its next turn. A weakened creature has disadvantage on Strength-based ability checks and Strength saving throws, and the

the next round. A creature charmed in this way obeys to the best of its ability any command the dragon issues that isn’t directly harmful to the creature. Cancellation. The dragon chooses an

Concealed Blade

Equipment

(Perception) checks. You have Advantage on the first attack made in the first round of combat against any enemy who failed their check.

Red Slaad Legacy

Monsters Monster Manual (2014)

, and it has disadvantage on attack rolls, ability checks, and saving throws. At birth, the tadpole chews its way through vital organs and out of the host’s chest in 1 round, killing the host in the

Doppelganger Legacy

Monsters Basic Rules (2014)

. Surprise Attack. If the doppelganger surprises a creature and hits it with an attack during the first round of combat, the target takes an extra 10 (3d6);{"diceNotation":"3d6","rollType":"roll

target's mind, the doppelganger has advantage on Wisdom (Insight) and Charisma (Deception, Intimidation, and Persuasion) checks against the target.Doppelgangers are devious shapeshifters that take on

Slithering Tracker Legacy

Monsters Volo's Guide to Monsters

Ambusher. In the first round of a combat, the slithering tracker has advantage on attack rolls against any creature it surprised. Damage Transfer. While grappling a creature, the slithering tracker

, unless an observer succeeds on a DC 18 Intelligence (Investigation) check. Keen Tracker. The slithering tracker has advantage on Wisdom checks to track prey. Liquid Form. The slithering tracker can

Ancient Gold Dragon Legacy

Monsters Basic Rules (2014)

in a row: The dragon glimpses the future, so it has advantage on attack rolls, ability checks, and saving throws until initiative count 20 on the next round. One creature the dragon can see within

checks, and Strength saving throws for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. Change Shape. The dragon magically

Adult Gold Dragon Legacy

Monsters Basic Rules (2014)

: The dragon glimpses the future, so it has advantage on attack rolls, ability checks, and saving throws until initiative count 20 on the next round. One creature the dragon can see within 120 feet

. Weakening Breath. The dragon exhales gas in a 60-foot cone. Each creature in that area must succeed on a DC 21 Strength saving throw or have disadvantage on Strength-based attack rolls, Strength checks

Red Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

, the host starts to feel unwell, its speed is halved, and it has disadvantage on attack rolls, ability checks, and saving throws. At birth, the tadpole chews its way through vital organs and out of

the host's chest in 1 round, killing the host in the process. If the disease is cured before the tadpole's emergence, the unborn slaad is disintegrated.As a slaad emerges from the Spawning Stone, the

Drow Arachnomancer Legacy

Monsters Mordenkainen’s Tome of Foes

, as well as on Wisdom (Perception) checks that rely on sight. Web Walker. The drow ignores movement restrictions caused by webbing.Multiattack. The drow makes two poisonous touch attacks or two bite

attacks. The first of these attacks that hits each round deals an extra 26 (4d12);{"diceNotation":"4d12","rollType":"damage","rollAction":"Multiattack","rollDamageType":"poison"} poison damage to the

The Infernal Machine of Lum the Mad

Magic Items Infernal Machine Rebuild

you. You have disadvantage on Wisdom (Animal Handling) checks. 03 One weapon or item you carry of your choice gains a walking speed of 30 feet and goes where you tell it. Your armor and clothing

checks made using thieves’ tools or tinker’s tools. Any metal object you wield or wear is covered in a thin layer of oil that drips occasionally and leaves your fingerprints everywhere

Ascending the Slope

Compendium - Sources->Dungeons & Dragons->Princes of the Apocalypse

circumstances, though, they don’t repeat the alarm round after round. Once a battle starts, reinforcements arrive in waves. It’s conceivable that, once a few camps empty out, the rest hunker down and

navigable, and can be climbed without having to make ability checks. Map 3.5: Scarlet Moon HallView Player Version

Singing Sands Features

Compendium - Sources->Dungeons & Dragons->Bigby Presents: Glory of the Giants

across the desert at 1 mile per hour (10 feet per round). It reflects the sun and shines brightly, imposing disadvantage on attack rolls and on Wisdom (Perception) checks that rely on sight within 50

Ending a Chase

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

quarry makes a Dexterity (Stealth) check at the end of each round, after every participant in the chase has taken its turn. The result is compared to the passive Wisdom (Perception) scores of the pursuers

check is greater than the highest passive score, that quarry escapes. If not, the chase continues for another round. The quarry gains advantage or disadvantage on its check based on prevailing

Doppelganger

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

. It reverts to its true form if it dies. Ambusher. In the first round of a combat, the doppelganger has advantage on attack rolls against any creature it surprised. Surprise Attack. If the

doppelganger surprises a creature and hits it with an attack during the first round of combat, the target takes an extra 10 (3d6) damage from the attack. Actions Multiattack. The doppelganger makes two

Ending a Chase

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

quarry makes a Dexterity (Stealth) check on Initiative count 0 each round, after every participant in the chase has taken its turn. If the quarry is never out of the lead pursuer’s sight, the check fails

the quarry’s ability to escape, at your discretion. For example, a quarry with a Faerie Fire spell cast on it might have Disadvantage on checks made to escape because it’s much easier to spot. If the

A Moonstone Dragon's Lair

Compendium - Sources->Dungeons & Dragons->Fizban's Treasury of Dragons

Wisdom saving throw or have disadvantage on ability checks until initiative count 20 on the following round. Regional Effects The region surrounding a legendary moonstone dragon’s lair is altered by

it and attempts to send that creature to a dream plane. The target must succeed on a DC 15 Charisma saving throw or be banished to a harmless demiplane until initiative count 20 on the next round

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