before beast diameter casting reduces

Black Pudding

Monsters Monster Manual

by the target takes a −1 penalty to the AC it offers. The armor is destroyed if the penalty reduces its AC to 10. The penalty can be removed by casting the Mending spell on the armor.Split

penalty reaches −5. The penalty can be removed by casting the Mending spell on the weapon. In 1 minute, the pudding can eat through 2 feet of nonmagical wood or metal. Spider Climb. The pudding

Gray Ooze

Monsters Monster Manual

":"Acid"} Acid damage. Nonmagical armor worn by the target takes a −1 penalty to the AC it offers. The armor is destroyed if the penalty reduces its AC to 10. The penalty can be removed by casting the Mending spell on the armor.Acid, Cold, Fire

the penalty reaches −5. The penalty can be removed by casting the Mending spell on the weapon. The ooze can eat through 2-inch-thick, nonmagical metal or wood in 1 round.Pseudopod. Melee Attack

Sea Hag

Monsters Monster Manual

spell’s normal casting time, and using Intelligence as the spellcasting ability (spell save DC 11): Augury, Find Familiar, Identify, Locate Object, Scrying, or Unseen Servant. The hag must

finish a Long Rest before using this trait to cast that spell again. Vile Appearance. Wisdom Saving Throw: DC 11, any Beast or Humanoid that starts its turn within 30 feet of the hag and can see the hag

Rust Monster

Monsters Monster Manual

creature with the object. Failure: The object takes a −1 penalty to the AC it offers (armor) or to its attack rolls (weapon). Armor is destroyed if the penalty reduces its AC to 10, and a weapon

is destroyed if its penalty reaches −5. The penalty can be removed by casting the Mending spell on the armor or weapon. Destroy Metal. The rust monster touches a nonmagical metal object within

Awaken

Spells Player’s Handbook

You spend the casting time tracing magical pathways within a precious gemstone, and then touch the target. The target must be either a Beast or Plant creature with an Intelligence of 3 or less or a

Simulacrum

Spells Player’s Handbook

You create a simulacrum of one Beast or Humanoid that is within 10 feet of you for the entire casting of the spell. You finish the casting by touching both the creature and a pile of ice or snow that

is the same size as that creature, and the pile turns into the simulacrum, which is a creature. It uses the game statistics of the original creature at the time of casting, except it is a Construct

Hat of Many Spells

Magic Items Dungeon Master’s Guide

its normal casting time, and you can’t use this property again until you finish a Short or Long Rest. On a failed check, you fail to cast the spell and a random effect occurs instead

, and attacks you. 91–95 A vertical, 10-foot-diameter, two-way portal to another plane of existence opens in an unoccupied space within 30 feet of you and remains open until the end of your

Glyph of Warding

Spells Player’s Handbook

) to conceal the glyph. The glyph can cover an area no larger than 10 feet in diameter. If the surface or object is moved more than 10 feet from where you cast this spell, the glyph is broken, and the

Thunder damage (your choice when you create the glyph) on a failed save or half as much damage on a successful one. Spell Glyph. You can store a prepared spell of level 3 or lower in the glyph by casting

Dirge

Spells Forgotten Realms: Heroes of Faerûn

save only once per turn. Casting as a Circle Spell. Casting this as a Circle spell requires a minimum of two secondary casters. If the spell is cast as a Circle spell, its duration becomes

lost Hit Points nor reduces the creature’s Exhaustion level. When the spell is cast, each secondary caster must expend a level 4+ spell slot; otherwise, the spell fails.

Gingwatzim

Monsters Candlekeep Mysteries

as a book, dagger, or gemstone) that its creator is carrying or wearing when the gingwatzim is conjured. The other form can be any Tiny beast. Once these alternate forms are chosen, they can’t

-diameter sphere of luminous ectoplasm—into one of its two alternate forms, or from one of those forms back into its true form. In object form, it can’t move or make attacks but otherwise retains

Awaken Legacy

Spells Basic Rules (2014)

After spending the casting time tracing magical pathways within a precious gemstone, you touch a Huge or smaller beast or plant. The target must have either no Intelligence score or an Intelligence

awakened beast or plant is charmed by you for 30 days or until you or your companions do anything harmful to it. When the charmed condition ends, the awakened creature chooses whether to remain friendly to you, based on how you treated it while it was charmed.

Nightmare Beast

Monsters Monstrous Compendium Vol. 1: Spelljammer Creatures

Legendary Resistance (2/Day). If the beast fails a saving throw, it can choose to succeed instead. Siege Monster. The beast deals double damage to objects and structures.Multiattack. The beast makes

","rollAction":"Tusk","rollDamageType":"slashing"} slashing damage. Disintegration Gaze (Recharge 5–6);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Disintegration Gaze"}. The beast targets

Vargouille Legacy

Monsters Volo's Guide to Monsters

head tears from its body and becomes a new vargouille. Casting remove curse, greater restoration, or a similar spell on the target before the transformation is complete can end the curse. Doing so

undoes the changes made to the target by the curse. Stunning Shriek. The vargouille shrieks. Each humanoid and beast within 30 feet of the vargouille and able to hear it must succeed on a DC 12 Wisdom

Yeenoghu

Monsters Mordenkainen Presents: Monsters of the Multiverse

a separate Bite attack against each creature within 10 feet of him.The Beast of Butchery appears as a great scarred gnoll, towering 14 feet tall. Yeenoghu is the Gnoll Lord, and his creations are

others worship the Beast of Butchery, but those who do tend to take on a gnoll-like aspect, hunching over and filing their teeth down to points. Yeenoghu wants nothing more than slaughter and senseless

Night Hag (Coven Variant) Legacy

Monsters Monster Manual (2014)

For casting these spells, each hag is a 12th-level spellcaster that uses Intelligence as her spellcasting ability. The spell save DC is 15, and the spell attack bonus is +7;{"diceNotation":"1d20+7

":"roll","rollAction":"Nightmare Haunting"}. If this effect reduces the target's hit point maximum to 0, the target dies, and if the target was evil, its soul is trapped in the hag's soul bag. The

Ythryn Mythallar

Magic Items Icewind Dale: Rime of the Frostmaiden

hold. The largest mythallars are 150 feet in diameter. The Ythryn mythallar is a relatively small device—a mere 50 feet in diameter. To attune to this mythallar, a creature must finish a short

can use the Ythryn mythallar to cast the control weather spell without requiring any components and without the need for you to be outdoors. This casting of the spell has a 50-mile radius. For the

Eyestalk of Gzemnid

Monsters Planescape: Adventures in the Multiverse

Tunneler. The eyestalk can burrow through solid rock at half its burrow speed and leaves a 10-foot-diameter tunnel in its wake.Multiattack. The eyestalk uses Eradication Gaze, if available, and makes

);{"diceNotation":"10d10", "rollType":"damage", "rollAction":"Eradication Gaze", "rollDamageType":"necrotic"} necrotic damage. If this damage reduces a creature to 0 hit points, its body becomes a

Yeenoghu Legacy

Monsters Out of the Abyss

. When Yeenoghu reduces a creature to 0 hit points with a melee attack on his turn, Yeenoghu can take a bonus action to move up to half his speed and make a bite attack.Multiattack. Yeenoghu makes three

5 or more, the target falls prone. Savage (Costs 2 Actions). Yeenoghu makes a bite attack against each creature within 10 feet of him.The Beast of Butchery appears as a great battle-scarred gnoll

Asteroid Spider

Monsters Monstrous Compendium Vol. 1: Spelljammer Creatures

full-grown specimen has a body 30 feet in diameter and legs that are at least 30 feet long. When it wraps its legs tightly around its body and closes its eyes, the asteroid spider resembles nothing so

ship that aren’t enclosed become difficult terrain until the effect ends. The web is impervious to damage but is destroyed by a successful casting of dispel magic (DC 18).

Ring of Shooting Stars Legacy

Magic Items Basic Rules (2014)

While wearing this ring in dim light or darkness, you can cast dancing lights and light from the ring at will. Casting either spell from the ring requires an action. The ring has 6 charges for the

charges as an action to create one to four 3-foot-diameter spheres of lightning. The more spheres you create, the less powerful each sphere is individually. Each sphere appears in an unoccupied space

Dybbuk Legacy

Monsters Mordenkainen’s Tome of Foes

cause a quadruped to move as a biped. Any beast or humanoid that sees this behavior must succeed on a DC 12 Wisdom saving throw or become frightened of the dybbuk for 1 minute. The frightened creature can

":"Tendril"}. This reduction lasts until the target finishes a short or long rest. The target dies if this effect reduces its hit point maximum to 0. Possess Corpse (Recharge 6);{"diceNotation":"1d6

Simulacrum Legacy

Spells Basic Rules (2014)

You shape an illusory duplicate of one beast or humanoid that is within range for the entire casting time of the spell. The duplicate is a creature, partially real and formed from ice or snow, and it

Vargouille

Monsters Mordenkainen Presents: Monsters of the Multiverse

Charisma becomes 2, it dies, and its head tears from its body and becomes a new vargouille. Casting remove curse, greater restoration, or a similar spell on the target before the transformation is

"}. The vargouille shrieks. Each Humanoid and Beast within 30 feet of the vargouille and able to hear it must succeed on a DC 12 Wisdom saving throw or be frightened of the vargouille until the end of the

Teleportation Circle Legacy

Spells Basic Rules (2014)

As you cast the spell, you draw a 10-foot-diameter circle on the ground inscribed with sigils that link your location to a permanent teleportation circle of your choice whose sigil sequence you know

sequence to memory after studying it for 1 minute. You can create a permanent teleportation circle by casting this spell in the same location every day for one year. You need not use the circle to teleport when you cast the spell in this way.

Arcane Gate Legacy

Spells Player’s Handbook (2014)

circular portal, 10 feet in diameter, opens over each point. If the portal would open in the space occupied by a creature, the spell fails, and the casting is lost. The portals are two-dimensional

Soul Monger Legacy

Monsters Mordenkainen’s Tome of Foes

reduces a creature to 0 hit points, the soul monger can gain temporary hit points equal to half the creature's hit point maximum. While the soul monger has temporary hit points from this ability, it has

advantage on attack rolls. Weight of Ages. Any beast or humanoid, other than a shadar-kai, that starts its turn within 5 feet of the soul monger has its speed reduced by 20 feet until the start of that

Astral Dreadnought Legacy

Monsters Mordenkainen’s Tome of Foes

resembles a stone cave roughly 1,000 feet in diameter with a ceiling 100 feet high. Like a stomach, it contains the remains of the dreadnought's past meals. The dreadnought can't be harmed from within

damage reduces it to 0 hit points or it is incapacitated, the astral dreadnought swallows it. The swallowed target, along with everything it is wearing and carrying, appears in an unoccupied space on

Jarad Vod Savo

Monsters Guildmasters’ Guide to Ravnica

":"poison"} poison damage to a creature he can see within 10 feet of him. Turn Resistance. Jarad has advantage on saving throws against any effect that turns undead. Undead Fortitude. If damage reduces

instead.Multiattack. Jarad makes two attacks: one with his Noxious Touch and one with his Staff of Svogthir. He can cast a spell with a casting time of 1 action in place of one of these attacks. Noxious Touch

Halaster Blackcloak

Monsters Waterdeep: Dungeon of the Mad Mage

casting elder runes on them. Halaster’s gates connect the different levels of Undermountain, thus enabling him to bring new monsters into the dungeon to replenish those that die or escape. Even as

, however, Halaster is alert and attentive to the activities and preparations of all beings near him. He never willingly enters combat without first casting mage armor and mind blank on himself.As the

Mudslick Tower

Magic Items Phandelver and Below: The Shattered Obelisk

You can use an action to place this 1-inch-diameter granite sphere on the ground and speak its command word, which is “petrification” in Terran. The sphere rapidly grows into a stout

tower that remains until you use an action to touch the tower and speak the command word again, whereupon the tower shrinks back to a 1-inch-diameter granite sphere. The tower must be empty to shrink in

Coral

Monsters Misplaced Monsters: Volume One

a successful save, the target takes half as much damage only. If this damage reduces the target to 0 hit points, the target dies, and its body is reduced to fine dust. Created by Kenzie C. Coral

-smelling cloud of gas that surrounds and shields the target. The target has half cover until the gas disappears at the start of Coral’s next turn. Gift of Speech (1/Day). Coral targets one Beast she

Ephixis, Bow of Nylea

Magic Items Mythic Odysseys of Theros

the arrows is 18. Each arrow has a unique property: Spring. As an action, you can fire this arrow, targeting a beast or a plant creature you can see within 320 feet of you. On a hit, the arrow deals

see within 320 feet of you, no attack roll required, casting the wall of thorns spell there. Winter. As an action, you can fire this arrow at a space that you can see within 320 feet of you, no

Forlarren

Monsters Mordenkainen's Fiendish Folio Volume 1

might present itself as a friendly, agreeable guide that helps travelers survive the Nine Hells. Another is a howling beast that attempts to destroy all in its path. One will show mercy and empathy

into earning trust from those it encounters, casting itself as a helpless creature pleading for aid even as it looks for the opportunity to betray and overpower. Or it might seek to dominate the weak

Astral Dreadnought

Monsters Mordenkainen Presents: Monsters of the Multiverse

diameter with a ceiling 100 feet high. Like a stomach, it contains the remains of past meals. The dreadnought can’t be harmed from within the demiplane. If the dreadnought dies, the demiplane

", "rollAction":"Bite", "rollDamageType":"force"} force damage. If the target is a Huge or smaller creature and this damage reduces it to 0 hit points or it is incapacitated, the dreadnought swallows it. The

Auril (Third Form)

Monsters Icewind Dale: Rime of the Frostmaiden

the effect on itself on a success.Third Form Auril’s third form, called Winter’s Womb or the Queen of Frozen Tears by her most ardent followers, is a 3-foot-diameter ice diamond containing

using her magic. Casting such great magic night after night while also granting spells to her devoted followers leaves Auril weak and vulnerable. In her self-inflicted weakened state, Auril is inclined

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