cause checks

Synaptic Static

Spells Player’s Handbook

You cause psychic energy to erupt at a point within range. Each creature in a 20-foot-radius Sphere centered on that point makes an Intelligence saving throw, taking 8d6 Psychic damage on a failed

save or half as much damage on a successful one. On a failed save, a target also has muddled thoughts for 1 minute. During that time, it subtracts 1d6 from all its attack rolls and ability checks, as

Thaumaturgy

Spells Player’s Handbook

(Intimidation) checks. Fire Play. You cause flames to flicker, brighten, dim, or change color for 1 minute. Invisible Hand. You instantaneously cause an unlocked door or window to fly open or slam

shut. Phantom Sound. You create an instantaneous sound that originates from a point of your choice within range, such as a rumble of thunder, the cry of a raven, or ominous whispers. Tremors. You cause harmless tremors in the ground for 1 minute.

Heat Metal

Spells Player’s Handbook

Choose a manufactured metal object, such as a metal weapon or a suit of Heavy or Medium metal armor, that you can see within range. You cause the object to glow red-hot. Any creature in physical

object, it has Disadvantage on attack rolls and ability checks until the start of your next turn. Using a Higher-Level Spell Slot. The damage increases by 1d8 for each spell slot level above 2.

Quarterstaff of the Acrobat

Magic Items Dungeon Master’s Guide

You have a +2 bonus to attack rolls and damage rolls made with this magic weapon. While holding this weapon, you can cause it to emit green Dim Light out to 10 feet, either as a Bonus Action or

. Acrobatic Assist (Quarterstaff and 10-Foot Pole Forms Only). While holding this weapon, you have Advantage on Dexterity (Acrobatics) checks. Attack Deflection (Quarterstaff Form Only). When you are hit by

Sahuagin Deep Diver

Monsters Ghosts of Saltmarsh

Blood Frenzy. The deep diver has advantage on melee attack rolls against any creature that doesn't have all its hit points. Brine Lurker. The deep diver has advantage on Dexterity (Stealth) checks

cause its lure to light up or darken at will. While the lure is lit, the deep diver sheds bright light in a 30-foot radius centered on itself and dim light for an additional 20 feet. Shark Telepathy

Kayalithica

Monsters Storm King's Thunder

Stone Camouflage. The giant has advantage on Dexterity (Stealth) checks made to hide in rocky terrain. Olach Morrah. The giant meditates for 1 hour, during which time it can do nothing else. At the

: meld into stone, stone shape 1/day: stoneskin, time stop Animate Golem. Once during this adventure, as an action, Kayalithica can point to one of the fossilized stone giants in this cave and cause it

Asha Vandree

Monsters Out of the Abyss

Divine Eminence. As a bonus action, Asha can expend a spell slot to cause its melee weapon attacks to magically deal an extra 10 (3d6);{"diceNotation":"3d6","rollType":"damage","rollAction":"Divine

components: At will: dancing lights 1/day each: darkness, faerie fire Sunlight Sensitivity. While in sunlight, Asha has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely

Oriq Recruiter

Monsters Strixhaven: A Curriculum of Chaos

mask, the recruiter can’t be targeted by any divination magic or perceived through magical scrying sensors, and it adds double its proficiency bonus to Charisma (Deception) checks (included above

for the magic their master covets and watch for impressionable students and embittered faculty they might turn to their cause. The Oriq take pains to hide their true allegiance and wear masks to hide

Faerie Borrower

Monsters Monstrous Compendium Vol. 4: Eldraine Creatures

":"1d6", "rollType":"damage", "rollAction":"Magic Mockery", "rollDamageType":"psychic"} psychic damage and have disadvantage on attack rolls and ability checks until the start of the faerie’s next

are tiny thieves who steal whatever they can lay their hands on to cause confusion and consternation. A faerie borrower stands less than six inches tall, with blue or blue-gray skin and wings resembling

Drow Favored Consort

Monsters Mordenkainen Presents: Monsters of the Multiverse

rolls, as well as on Wisdom (Perception) checks that rely on sight.Multiattack. The drow makes three Scimitar or Arcane Eruption attacks. The drow can replace one of the attacks with a use of

an attack roll, the drow gives the target a +5 bonus to its AC until the start of the drow’s next turn, which can cause the triggering attack roll to miss.Nearly every priestess of Lolth

Oriq Blood Mage

Monsters Strixhaven: A Curriculum of Chaos

, the blood mage can’t be targeted by any divination magic or perceived through magical scrying sensors, and it adds double its proficiency bonus to Charisma (Deception) checks (included above

students and embittered faculty they might turn to their cause. The Oriq take pains to hide their true allegiance and wear masks to hide their identities. These masks have magical properties that function only for their intended wearers.Necrotic

Sphinx of Judgment

Monsters Guildmasters’ Guide to Ravnica

Inscrutable. The sphinx is immune to any effect that would sense its emotions or read its thoughts, as well as any divination spell that it refuses. Wisdom (Insight) checks made to ascertain the

. Lair Actions On initiative count 20 (losing initiative ties), the sphinx can take a lair action to cause one of the following magical effects; the sphinx can’t use an effect again until it

Elder Tempest

Monsters Mordenkainen Presents: Monsters of the Multiverse

falls there, causing the area to be lightly obscured. Heavy rain also extinguishes open flames and imposes disadvantage on Wisdom (Perception) checks that rely on hearing. In addition, strong winds swirl

(Costs 2 Actions). The tempest can cause a bolt of lightning to strike a point on the ground anywhere under its storm. Each creature within 5 feet of that point must make a DC 20 Dexterity saving throw

Y'demi

Monsters Strixhaven: A Curriculum of Chaos

’demi can’t be targeted by any divination magic or perceived through magical scrying sensors, and she adds double her proficiency bonus to Charisma (Deception) checks (included above

students and embittered faculty they might turn to their cause. The Oriq take pains to hide their true allegiance and wear masks to hide their identities. These masks have magical properties that

Bodak

Monsters Mordenkainen Presents: Monsters of the Multiverse

attack rolls and ability checks. Unusual Nature. The bodak doesn’t require air, food, drink, or sleep.Fist. Melee Weapon Attack: +5;{"diceNotation":"1d20+5", "rollType":"to hit", "rollAction

a successful one.A bodak is the undying remains of someone who revered Orcus. Devoid of life and soul, it exists only to cause death. A worshiper of Orcus can take ritual vows while carving the demon

Fraz-Urb'luu

Monsters Mordenkainen Presents: Monsters of the Multiverse

to greater and greater atrocities in the name of their cause, only to eventually reveal his true nature and claim their souls as his own.Fraz-Urb’luu’s Lair Fraz-Urb’luu’s

) and Wisdom (Insight) checks have disadvantage, and all Charisma (Deception) and Charisma (Performance) checks have advantage. Nostalgic Pangs. Sapient creatures within 1 mile of the lair frequently

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

eggs. Lair Actions On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects: The dragon creates fog as though it had cast the fog

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

, an aboleth can invoke the ambient magic to take lair actions. On initiative count 20 (losing initiative ties), the aboleth takes a lair action to cause one of the following effects: The aboleth

Pennant of the Vind Rune

Magic Items Storm King's Thunder

another means of staying aloft. Comforting Wind. You can’t suffocate. Wind’s Grasp. As a reaction when you fall, you can cause yourself to take no damage from the fall. Once you use this

wear the armor, and if it normally imposes disadvantage on Stealth checks, it no longer does so. Boots/Cloak. The pair of boots or cloak is now a rare magic item that requires attunement. While wearing

Halaster Blackcloak

Monsters Waterdeep: Dungeon of the Mad Mage

Special Equipment. Halaster wears a robe of eyes that lets him see in all directions, gives him darkvision out to a range of 120 feet, grants advantage on Wisdom (Perception) checks that rely on

(losing initiative ties), Halaster takes a lair action to cause one of the following effects: Halaster targets a volume of unoccupied space or solid stone no larger than four 10-foot cubes within 30

Olhydra

Monsters Princes of the Apocalypse

uses her lair action to cause one of the following effects: Pools of water in the lair surge outward in a grasping tide. Any creature within 20 feet of such a pool must succeed on a DC 20 Strength

, currents and tides are exceptionally strong and treacherous. Any ability checks made to safely navigate or control a vessel moving through these waters has disadvantage. Aquatic creatures that have

Nurvureem

Monsters Princes of the Apocalypse

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

snakes infest the lair, which is filled with the stench of death and decay. Lair Actions On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the

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

takes a lair action to cause one of the following effects; the mummy lord can’t use the same effect two rounds in a row. Each undead creature in the lair can pinpoint the location of each

Graz'zt Legacy

Monsters Out of the Abyss

initiative count 20 (losing initiative ties), Graz’zt can take a lair action to cause one of the following effects; he can’t use the same effect two rounds in a row: Graz’zt casts

(Stealth) checks made to hide. Regional Effects The region containing Graz’zt’s lair is warped by his magic, creating one or more of the following effects: Flat surfaces within 1 mile of

Hythonia

Monsters Mythic Odysseys of Theros

. Lair Actions On initiative count 20 (losing initiative ties), Hythonia can take a lair action to cause one of the following effects. She can’t use the same effect two rounds in a row

creature has disadvantage on Intelligence checks and Intelligence saving throws, and it behaves as if under the effect of the confusion spell. Regional Effects The region containing Hythonia’s

Hierophant Medusa

Monsters The Book of Many Things

with advantage.Sometimes deeply devout people, usually either Humanoids or medusas, dedicate themselves to a cause and are transformed by a deity or magic into hierophant medusas—beings with

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

Adult Crystal Dragon

Monsters Fizban's Treasury of Dragons

antics sometimes cause avalanches that threaten nearby villages. 5 An adult crystal dragon enjoys shaping the ice and snow near a den of troll;trolls into a labyrinth and watching the trolls try to

populations flourish within 6 miles of the lair. Ability checks made to forage for food by hunting, fishing, or trapping in that area are made with advantage. If the dragon dies, the animal population near

Teeth of Dahlver-Nar

Magic Items Tasha’s Cauldron of Everything

, you can use your reaction to cause them to be hit instead. You can’t use this reaction again until you finish a short or long rest. 4 The Mill Road Murders (halfling canine) 3 green hag

(Perception) checks from constant whispers of memories and nearby minds. 9 The Disappearances of Half Hollow (vomerine tooth of a Large toad) 4 giant toad;giant toads Your long jump is up to 30

Enlarge/Reduce Legacy

Spells Basic Rules (2014)

You cause a creature or an object you can see within range to grow larger or smaller for the duration. Choose either a creature or an object that is neither worn nor carried. If the target is

also has advantage on Strength checks and Strength saving throws. The target's weapons also grow to match its new size. While these weapons are enlarged, the target's attacks with them deal 1d4 extra

Heat Metal Legacy

Spells Basic Rules (2014)

Choose a manufactured metal object, such as a metal weapon or a suit of heavy or medium metal armor, that you can see within range. You cause the object to glow red-hot. Any creature in physical

contact with the object takes 2d8 fire damage when you cast the spell. Until the spell ends, you can use a bonus action on each of your subsequent turns to cause this damage again. If a creature is

Postal Knight

feats

You have trained as a member of the Courier Brigade. You gain the following benefits: Increase your Constitution or Wisdom score by 1, to a maximum of 20. You gain proficiency in the Athletics and Survival skills. Exhaustion doesn’t cause you to have disadvantage on ability checks.

Synaptic Static Legacy

Spells Xanathar's Guide to Everything

You choose a point within range and cause psychic energy to explode there. Each creature in a 20-foot-radius sphere centered on that point must make an Intelligence saving throw. A creature with an

has muddled thoughts for 1 minute. During that time, it rolls a d6 and subtracts the number rolled from all its attack rolls and ability checks, as well as its Constitution saving throws to maintain

Giant Slug

Monsters The Tortle Package

Keen Smell. The giant slug has advantage on Wisdom (Perception) checks that rely on smell. Spider Climb. The giant slug can climb difficult surfaces, including upside down on ceilings, without

the tentacles of the kraken statue and cause it to make a melee weapon attack (+3;{"diceNotation":"1d20+3","rollType":"to hit"} to hit) against one creature within 20 feet of the statue that the slug

Gynosphinx Legacy

Monsters Basic Rules (2014)

Inscrutable. The sphinx is immune to any effect that would sense its emotions or read its thoughts, as well as any divination spell that it refuses. Wisdom (Insight) checks made to ascertain the

mortals. Lair Actions On initiative count 20 (losing initiative ties), the sphinx can take a lair action to cause one of the following magical effects; the sphinx can’t use an effect again until it

Adult Gold Dragon Legacy

Monsters Basic Rules (2014)

. 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

ruins. Lair Actions On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects; the dragon can’t use the same effect two rounds in a row

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