build bat during creatures ready

Hat of Vermin

Magic Items Dungeon Master’s Guide

This hat has 3 charges. While holding the hat, you can take a Magic action to expend 1 charge and summon your choice of a Bat, a Frog, or a Rat. The summoned creature magically appears in the hat and

tries to get away from you as quickly as possible. The creature is Indifferent toward you and other creatures, and it isn’t under your control. It behaves as an ordinary creature of its kind

Wave

Magic Items Dungeon Master’s Guide

Held in the dungeon of White Plume Mountain, Wave is engraved with images of waves, shells, and sea creatures. You gain a +3 bonus to attack rolls and damage rolls made with this magic weapon. When

you roll a 20 on the d20 for an attack roll with this weapon, the target takes an extra 21 Necrotic damage. While holding Wave, you gain the following benefits: Combat Ready. You have Advantage on

Xvart

Monsters Mordenkainen Presents: Monsters of the Multiverse

Black Sewers, a realm within Pandemonium that he filled with his beloved creatures, rat;rats and bat;bats, which xvarts befriend to this day. He enjoyed his reign only briefly before Graz’zt

Raxivort’s Tongue. The xvart can communicate with ordinary bat;bats and rat;rats, as well as giant bat;giant bats and giant rat;giant rats.Shortsword. Melee Weapon Attack: +4;{"diceNotation

Dunbarrow Witch

Monsters Monstrous Compendium Vol. 4: Eldraine Creatures

, while others animate furniture, weapons, or other objects. Feel free to build encounters with witches that include additional creatures such as animated armor, a flying sword, a rug of smothering, or a Tiny Beast acting as a spy.

":"Polymorph Concoction"}): 1, bat; 2, frog; 3, lizard; or 4, rat. This transformation lasts for 1 hour or until the creature drops to 0 hit points in its new form. Shattered Shards. The witch targets a

Xvart Warlock of Raxivort

Monsters Mordenkainen Presents: Monsters of the Multiverse

transform even a creature as lowly as Raxivort into a demigod. After his apotheosis, Raxivort forged the Black Sewers, a realm within Pandemonium that he filled with his beloved creatures, rat;rats and bat

Raxivort’s Blessing. When the xvart reduces an enemy to 0 hit points, the xvart gains 4 temporary hit points. Raxivort’s Tongue. The xvart can communicate with ordinary bat;bats and rat

Giant Space Hamster

Monsters Spelljammer: Adventures in Space

","rollAction":"Bite","rollDamageType":"piercing"} piercing damage.Giant space hamsters are cute, plant-eating rodents as big as brown bears. They tend to avoid other creatures, especially threatening ones, but

they can be trained to serve as mounts and beasts of burden. Gnomes have tried to build spelljamming ships powered by giant space hamster wheels, so far without success. Space Hamsters Space

Stirge Legacy

Monsters Basic Rules (2014)

a cross between a large bat and an oversized mosquito. Its legs end in sharp pincers, and its long, needle-like proboscis slashes the air as it seeks to feed on the blood of living creatures.

Goliath Werebear

Monsters Icewind Dale: Rime of the Frostmaiden

Build (Humanoid Form Only). The werebear counts as one size larger when determining its carrying capacity and the weight it can push, drag, or lift. Shapechanger. The werebear can use its action to

snow. Elders invoke her name to keep young goliaths from wandering too far from home before they’re ready. Adult goliaths sometimes encounter this legendary individual in their travels to the far

Conjure Animals Legacy

Spells Basic Rules (2014)

disappears when it drops to 0 hit points or when the spell ends. The summoned creatures are friendly to you and your companions. Roll initiative for the summoned creatures as a group, which has its own

turns. They obey any verbal commands that you issue to them (no action required by you). If you don't issue any commands to them, they defend themselves from hostile creatures, but otherwise take no

Conjure Fey Legacy

Spells Basic Rules (2014)

. Sample Creatures CR Creature Name 0 Frog, Sea Horse, Baboon, Badger, Bat, Cat, Crab, Deer, Eagle, Giant Fire Beetle, Goat, Hawk, Hyena, Jackal, Lizard, Octopus, Owl, Quipper, Rat

defends itself from hostile creatures but otherwise takes no actions. If your concentration is broken, the fey creature doesn't disappear. Instead, you lose control of the fey creature, it becomes

Vampire Warrior Legacy

Monsters Monster Manual (2014)

Shapechanger. If the vampire isn't in sunlight or running water, it can use its action to polymorph into a Tiny bat or a Medium cloud of mist, or back into its true form. While in bat form, the

target (escape DC 18). Bite (Bat or Vampire Form Only). Melee Weapon Attack: +9;{"diceNotation":"1d20+9","rollType":"to hit","rollAction":"Bite"} to hit, reach 5 ft., one willing creature, or a creature

Lord's Ensemble

Magic Items Waterdeep: Dragon Heist

altered to sound genderless, and you are immune to magic that allows other creatures to read your thoughts, to determine whether you are lying, to know your alignment, or to know your creature type

. Creatures can communicate telepathically with you only if you allow it. Lord’s Amulet. This amulet bears the crest of Waterdeep. It functions as an amulet of proof against detection and location

Clockwork Horror

Monsters Monstrous Compendium Vol. 1: Spelljammer Creatures

precious metal. They roam Wildspace in commandeered spelljamming ships, gathering the precious metals and crystals they need to build more of their kind. Clockwork horrors have no goal beyond replication

and will stop at nothing to create new clockwork horrors. The time it takes for a clockwork horror to build another of its kind, assuming it has the requisite materials, is approximately ten days

Vampire Legacy

Monsters Basic Rules (2014)

Shapechanger. If the vampire isn’t in sunlight or running water, it can use its action to polymorph into a Tiny bat or a Medium cloud of mist, or back into its true form. While in bat form

damage. Instead of dealing damage, the vampire can grapple the target (escape DC 18). Bite. (Bat or Vampire Form Only). Melee Weapon Attack: +9;{"diceNotation":"1d20+9","rollType":"to hit","rollAction

Vampire Spellcaster Legacy

Monsters Monster Manual (2014)

Shapechanger. If the vampire isn't in sunlight or running water, it can use its action to polymorph into a Tiny bat or a Medium cloud of mist, or back into its true form. While in bat form, the

). Bite. (Bat or Vampire Form Only). Melee Weapon Attack: +9;{"diceNotation":"1d20+9","rollType":"to hit","rollAction":"Bite"} to hit, reach 5 ft., one willing creature, or a creature that is grappled by

Troglodyte Legacy

Monsters Monster Manual (2014)

relying on constant raids and hunting to survive. They take sadistic pleasure in hunting intelligent creatures weaker than themselves and show no mercy toward those they capture and drag back to their

in a frenzy. Troglodytes make little and build less, scavenging their possessions from their prey. They understand the value of metal weapons and armor, and fight among one another for the right to

Tloques-Popolocas

Monsters Tales from the Yawning Portal

needing to make an ability check. Shapechanger. If Tloques-Popolocas isn't in sunlight or running water, it can use its action to polymorph into a Tiny bat, or back into its true form. While in bat

":"roll","rollAction":"Children of the Night"} swarm of bats;swarms of bats, provided that the sun isn't up. The called creatures arrive in 1d4;{"diceNotation":"1d4","rollType":"roll","rollAction

Assassin Bug

Monsters Mordenkainen's Fiendish Folio Volume 1

infested areas, guards patrol with burning brands and flaming swords, ready to set suspect dwellings ablaze. Fire is an effective destroyer of assassin bug maggots, and wild creatures observed running

of druids (possibly in service to Malar or Talos) who cultivated the first of these creatures. However, it remains unknown whether their intent was to create a benign means of breaking down monstrous

Zorak Lightdrinker

Monsters Waterdeep: Dungeon of the Mad Mage

Shapechanger. If Zorak isn't in sunlight or running water, he can use his action to polymorph into a Tiny bat or a Medium cloud of mist, or back into his true form. While in bat form, Zorak can't

":"1d8+4","rollType":"damage","rollAction":"Unarmed Strike","rollDamageType":"bludgeoning"} bludgeoning damage. Instead of dealing damage, Zorak can grapple the target (escape DC 18). Bite. (Bat or Vampire

Neogi Pirate

Monsters Spelljammer: Adventures in Space

and the Ethereal Plane. They left their home world long ago to conquer and devour creatures in other realms. During this era, they dominated umber hulk;umber hulks and used them to build sleek, spidery ships capable of traversing the multiverse.

Sweettooth Horror

Monsters Monstrous Compendium Vol. 4: Eldraine Creatures

control, that time has long since passed. “I smell frosting. Ready your weapons!” —Greta, scourge of Sweettooth Horrors of Sweettooth Village In addition to the Sweettooth horror

described here, creatures found in and around Sweettooth Village might include gingerbrute;gingerbrutes as well as variations of oozes from the Monster Manual. For example, a black pudding might have

Nightmare Haunt

Monsters Monstrous Compendium Vol. 4: Eldraine Creatures

hit points equal to 5 times the number of unconscious creatures within 30 feet of itself.Multiattack. The nightmare haunt makes two Claw attacks. Claw. Melee Weapon Attack: +6;{"diceNotation":"1d20+6

is also considered difficult terrain for creatures other than the nightmare haunt for the duration of its effect. A creature that starts its turn in the area and is already restrained by the tendrils

Neogi Hatchling Swarm

Monsters Spelljammer: Adventures in Space

, as well as on the Astral Plane and the Ethereal Plane. They left their home world long ago to conquer and devour creatures in other realms. During this era, they dominated umber hulk;umber hulks and

used them to build sleek, spidery ships capable of traversing the multiverse.Bludgeoning, Piercing, Slashing

Mite

Monsters Mordenkainen's Fiendish Folio Volume 1

effect of the hex when it does so. It can then ignore the effect of the hex until the end of its turn.Mites are vexing fey creatures that delight in causing minor havoc and playing irritating pranks

next morning, the creature feels strangely refreshed. Then on the night of the next new moon, the dug-up earth stirs and a pack of mites emerges. Born of frustration and anger, these creatures exist

Neogi Hatchling

Monsters Mordenkainen Presents: Monsters of the Multiverse

their home world long ago to conquer and devour creatures in other realms. During this era, they dominated umber hulk;umber hulks and used them to build sleek, spidery ships capable of traversing the multiverse.

Cave Fisher

Monsters Mordenkainen Presents: Monsters of the Multiverse

, which the creature uses to snag prey. A cave fisher usually hunts small animals and is particularly fond of bat;bats, so it stretches a filament over an opening that such prey might travel through. It

prey and creatures such as explorers or travelers occasionally moving through the area. Valuable Parts Nearly every part of a cave fisher is useful after the creature has been dispatched. Cave

Wood Woad

Monsters Mordenkainen Presents: Monsters of the Multiverse

at once ready to perform its duty. The one who performed the ritual sets the wood woad to its task, and the creature follows those orders unceasingly. A wood woad has a hole where its heart would be

might die. If it is freed from its specific duties, a wood woad might roam to find another place of natural beauty or fey influence to watch over. Wood woads are drawn to creatures that have close ties

Chitine

Monsters Mordenkainen Presents: Monsters of the Multiverse

. Long ago, the cult of Lolth first subjected elf prisoners to horrible rituals that transformed them into creatures with both elven and spider traits, which their creators dubbed chitines. The intention

her worshipers’ rituals. The process usually transformed subjects into the spindly creatures her devotees expected, but occasionally, an elf changed into a choldrith: an arachnid Monstrosity able

Tlincalli

Monsters Mordenkainen Presents: Monsters of the Multiverse

target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.Tlincallis, also called scorpion folk, are chitin-covered creatures with a humanlike upper body

and the lower body of an enormous scorpion, complete with a stinger at the end of a long tail. These desert creatures range across arid lands, hunting at dawn and dusk. In the hours between, they wait

Isperia

Monsters Guildmasters’ Guide to Ravnica

","rollDamageType":"psychic"} psychic damage after each attack it makes against Isperia before the start of her next turn. Supreme Legal Authority. Isperia chooses up to three creatures she can see within

90 feet of her. Each target must succeed on a DC 23 Intelligence saving throw or Isperia chooses an action for that target: Attack, magic;Cast a Spell, Dash, Disengage, Dodge, Help, Hide, Ready

Bard Legacy

Classes Basic Rules (2014)

, decipher old tomes, travel to strange places, or encounter exotic creatures. Bards love to accompany heroes to witness their deeds firsthand. A bard who can tell an awe-inspiring story from personal

worthy of a story. Some bards acquire their magical music through extraordinary means, including the inspiration of fey or other supernatural creatures. Did you serve an apprenticeship, studying under

Keresta Delvingstone

Monsters Waterdeep: Dungeon of the Mad Mage

Shapechanger. If Keresta isn't in sunlight or running water, she can use her action to polymorph into a Tiny bat or a Medium cloud of mist, or back into her true form. While in bat form, Keresta

. (Bat or Vampire Form Only). Melee Weapon Attack: +9;{"diceNotation":"1d20+9","rollType":"to hit","rollAction":"Bite"} to hit, reach 5 ft., one willing creature, or a creature that is grappled by Keresta

Vegepygmy Chief

Monsters Mordenkainen Presents: Monsters of the Multiverse

tapping. Vegepygmies build and craft little; any gear they have is acquired from other creatures or built by copying simple construction they have witnessed. Russet Mold Few know for sure where

ages, it grows tougher and develops spore clusters on its body. Other vegepygmies defer to these so-called chiefs. A chief can expel its spores in a burst, infecting nearby creatures. If a creature

Maw of Yeenoghu

Monsters Bigby Presents: Glory of the Giants

", "rollAction":"Gorging Charge"}. The maw moves up to its speed without provoking opportunity attack;opportunity attacks and can move through the spaces of Large or smaller creatures. Each time the maw enters

relief, but the teeth quickly regrow. Cunning maws use this phenomenon as a ready supply of weaponry, throwing clusters of teeth at their foes. A maw of Yeenoghu charges at its prey on all fours with its mouth wide open, scraping the ground like a plow.

Neogi Void Hunter

Monsters Spelljammer: Adventures in Space

Material Plane, as well as on the Astral Plane and the Ethereal Plane. They left their home world long ago to conquer and devour creatures in other realms. During this era, they dominated umber hulk;umber

hulks and used them to build sleek, spidery ships capable of traversing the multiverse.Enslave (Recharges after a Short or Long Rest). The neogi targets one creature it can see within 30 feet of

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