measured some with only acid form for last

Animated Breath (Acid Form)

Monsters Fizban's Treasury of Dragons

Putrid Aura (Acid and Poison Forms Only). A creature that starts its turn within 5 feet of the animated breath must succeed on a DC 15 Constitution saving throw or be poisoned until the start of its

next turn. A creature that touches the animated breath or hits it with a melee attack takes 3 (1d6);{"diceNotation":"1d6","rollType":"damage","rollAction":"Putrid Aura","rollDamageType":"acid"} acid

Black Pudding

Monsters Monster Manual

);{"diceNotation":"1d8", "rollType":"damage", "rollAction":"Corrosive Form", "rollDamageType":"Acid"} Acid damage. Nonmagical ammunition is destroyed immediately after hitting the pudding and dealing

Amorphous. The pudding can move through a space as narrow as 1 inch without expending extra movement to do so. Corrosive Form. A creature that hits the pudding with a melee attack roll takes 4 (1d8

Mimic

Monsters Monster Manual

Adhesive (Object Form Only). The mimic adheres to anything that touches it. A Huge or smaller creature adhered to the mimic has the Grappled condition (escape DC 13). Ability checks made to escape

":"Acid"} Acid damage. Pseudopod. Melee Attack Roll: +5;{"diceNotation":"1d20+5", "rollType":"to hit", "rollAction":"Pseudopod"}, reach 5 ft. Hit: 7 (1d8 + 3);{"diceNotation":"1d8+3", "rollType":"damage

Clay Golem

Monsters Monster Manual

Acid Absorption. Whenever the golem is subjected to Acid damage, it takes no damage and instead regains a number of Hit Points equal to the Acid damage dealt. Berserk. Whenever the golem starts its

. Immutable Form. The golem can’t shape-shift. Magic Resistance. The golem has Advantage on saving throws against spells and other magical effects.Multiattack. The golem makes two Slam attacks

Adult Copper Dragon

Monsters Monster Manual

":"Rend", "rollDamageType":"Acid"} Acid damage. Acid Breath (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Acid Breath"}. Dexterity Saving Throw: DC 18, each creature in an

60-foot-long, 5-foot-wide Line. Failure: 54 (12d8);{"diceNotation":"12d8", "rollType":"damage", "rollAction":"Acid Breath", "rollDamageType":"Acid"} Acid damage. Success: Half damage. Slowing Breath

Yochlol

Monsters Monster Manual

":"damage", "rollAction":"Caustic Lash", "rollDamageType":"Acid"} Acid damage. Spellcasting. The yochlol casts one of the following spells, requiring no Material components and using Charisma as the

spellcasting ability (spell save DC 15): At Will: Detect Thoughts, Gaseous Form (self only), Web1/Day: Dominate PersonToxic Escape. Trigger: The yochlol is hit by an attack roll. Response: The yochlol

Gray Ooze

Monsters Monster Manual

Amorphous. The ooze can move through a space as narrow as 1 inch without expending extra movement to do so. Corrosive Form. Nonmagical ammunition is destroyed immediately after hitting the ooze and

":"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

Ancient Copper Dragon

Monsters Monster Manual

":"Rend", "rollDamageType":"Acid"} Acid damage. Acid Breath (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Acid Breath"}. Dexterity Saving Throw: DC 22, each creature in an

90-foot-long, 10-foot-wide Line. Failure: 63 (14d8);{"diceNotation":"14d8", "rollType":"damage", "rollAction":"acid breath", "rollDamageType":"Acid"} Acid damage. Success: Half damage. Slowing Breath

Green Slaad

Monsters Monster Manual

Thoughts, Mage Hand1/Day Each: Fireball, Invisibility (self only)Acid, Cold, Fire, Lightning, ThunderShape-Shift. The slaad shape-shifting;shape-shifts into a Small or Medium Humanoid, or it returns to

its true form. Other than its size, its game statistics are the same in each form. Any equipment it is wearing or carrying isn’t transformed.

Staff of the Woodlands

Magic Items Dungeon Master’s Guide

Wall of Thorns 6 Tree Form. You can take a Magic action to plant one end of the staff in earth in an unoccupied space and expend 1 charge to transform the staff into a healthy tree. The tree

discerned with the Detect Magic spell. While touching the tree and using a Magic action, you return the staff to its normal form. Any creature in the tree falls when the tree reverts to a staff

Vampire

Monsters Monster Manual

, the vampire uses Shape-Shift to become mist (no action required). If it can’t use Shape-Shift, it is destroyed. While it has 0 Hit Points in mist form, it can’t return to its vampire form

, and it must reach its resting place within 2 hours or be destroyed. Once in its resting place, it returns to its vampire form and has the Paralyzed condition until it regains any Hit Points, and it

Alter Self

Spells Player’s Handbook

You alter your physical form. Choose one of the following options. Its effects last for the duration, during which you can take a Magic action to replace the option you chose with a different one

Summon Elemental

Spells Player’s Handbook

, Fire, or Water. The creature resembles a bipedal form wreathed in the chosen element, which determines certain details in its stat block. The creature disappears when it drops to 0 Hit Points or when

INT 4 –3 –3 WIS 10 +0 +0 CHA 16 +3 +3 Resistances Acid (Water only), Lightning and Thunder (Air only), Piercing and Slashing (Earth only) Immunities Fire

Modify Memory

Spells Player’s Handbook

experienced within the last 24 hours and that lasted no more than 10 minutes. You can permanently eliminate all memory of the event, allow the target to recall the event with perfect clarity, change its

creature’s natural inclinations, alignment, or beliefs. An illogical modified memory, such as a false memory of how much the creature enjoyed swimming in acid, is dismissed as a bad dream. The DM

Wand of Wonder

Magic Items Dungeon Master’s Guide

charges daily at dawn. If you expend the wand’s last charge, roll 1d20. On a 1, the wand crumbles into dust and is destroyed. Wand of Wonder Effects 1d100 Effect 01–20 You cast

origin. Roll 1d4 to determine the target’s new form. On a 1, the new form is a Black Bear; on a 2, the new form is a Giant Wasp; on a 3–4, the new form is a Frog. 98–00 The

Ring of Elemental Command

Magic Items Dungeon Master’s Guide

Resistance to Lightning damage, and you have a Fly Speed equal to your Speed and can hover. Ring of Elemental Command (Earth);Earth. You know Terran, and you have Resistance to Acid damage. Terrain

through which you pass. If you end your turn in solid earth or rock, you are shunted out to the nearest unoccupied space you last occupied. Ring of Elemental Command (Fire);Fire. You know Ignan, and you

Gray Ooze Glob

Monsters Heroes of the Borderlands

Amorphous. The ooze can move through a space as narrow as 1 inch without expending extra movement to do so. Corrosive Form. Whenever a creature hits the ooze with a melee attack, that creature takes

2 Acid damage.Pseudopod. Melee Attack Roll: +3;{"diceNotation":"1d20+3", "rollType":"to hit", "rollAction":"Pseudopod"}, reach 5 ft. Hit: 10 (2d8 + 1);{"diceNotation":"2d8+1", "rollType":"damage

Sammaster (Lich Form)

Monsters Forgotten Realms: Adventures in Faerûn

Resistance. Sammaster has Advantage on saving throws against spells and other magical effects. Soul Gem. If Sammaster is reduced to 0 Hit Points while his magical soul gem exists, his lich form dissolves

to dust. After 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Soul Gem"} days, he appears in the space of his soul gem, using the Sammaster (Dracolich Form) stat block. The gem is a

Sammaster (Dracolich Form)

Monsters Forgotten Realms: Adventures in Faerûn

until he is reduced to 0 Hit Points. If Sammaster is reduced to 0 Hit Points, his dracolich form dissolves to dust. After 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Soul Gem"} days

, he appears in an unoccupied space within 5 feet of his soul gem (so long as the gem still exists), using the Sammaster (Lich Form) stat block. The gem is a Tiny object that has AC 20; HP 50; and

Warforged

Species Eberron: Forge of the Artificer

Warforged are mechanical beings built as weapons to fight in the Last War. An unexpected breakthrough produced sentient beings made from wood and metal that nevertheless can feel pain and emotion

plates form a protective outer shell and reinforce joints. The more a warforged cultivates their individuality, the more likely they are to modify their body, seeking out an artifi cer to customize the

Vampire Infernalist

Monsters Astarion's Book of Hungers

, the vampire uses Shape-Shift to become mist (no action required). If it can’t use Shape-Shift, it is destroyed. While it has 0 Hit Points in mist form, it can’t return to its vampire form

, and it must reach its resting place within 2 hours or be destroyed. Once in its resting place, it returns to its vampire form and has the Paralyzed condition until it regains any Hit Points, and it

Orb of Damara

Magic Items Forgotten Realms: Adventures in Faerûn

Cone. When you do, choose Acid, Cold, Fire, Lightning, or Poison. Each creature in the Cone makes a DC 18 Dexterity saving throw, taking 6d6;{"diceNotation":"6d6", "rollType":"roll", "rollAction

reverts to its original form and the orb reappears outside its body. Destroying the Orb. If an Ancient Gold Dragon willingly swallows the orb, the orb and the dragon are both destroyed.

Thessaltoxin (Ingested or Injury)

Equipment

affected by the polymorph spell. The creature’s new form is a random beast or a creature it has seen within the last 24 hours (as chosen by the DM). This transformation lasts until the end of the

This poison was first created using blood harvested from the artificer Thessalar. A creature subjected to the poison must succeed on a DC 15 Constitution saving throw or take on a new form as if

Copper Dragon Wyrmling Legacy

Monsters Basic Rules (2014)

following breath weapons. Acid Breath. The dragon exhales acid in an 20-foot line that is 5 feet wide. Each creature in that line must make a DC 11 Dexterity saving throw, taking 18 (4d8);{"diceNotation

":"4d8","rollType":"damage","rollAction":"Acid Breath","rollDamageType":"acid"} acid damage on a failed save, or half as much damage on a successful one. Slowing Breath. The dragon exhales gas in a 15

Young Copper Dragon Legacy

Monsters Basic Rules (2014)

damage. Breath Weapons (Recharge 5–6);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Breath Weapons"}. The dragon uses one of the following breath weapons. Acid Breath. The dragon exhales

acid in an 40-foot line that is 5 feet wide. Each creature in that line must make a DC 14 Dexterity saving throw, taking 40 (9d8);{"diceNotation":"9d8","rollType":"damage","rollAction":"Acid Breath

Braxat

Monsters Spelljammer: Adventures in Space

also spew acid, though they tend to do so only as a last resort, since the acid dissolves and ruins the flesh they crave. A braxat projects an invisible psychic barrier around itself that enhances its

"} bludgeoning damage. Acid Breath (Recharge 6);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Acid Breath"}. The braxat exhales a 15-foot cone of acid. Each creature in the cone must make a DC 18

Ancient Copper Dragon Legacy

Monsters Basic Rules (2014)

of the following breath weapons. Acid Breath. The dragon exhales acid in an 90-foot line that is 10 feet wide. Each creature in that line must make a DC 22 Dexterity saving throw, taking 63 (14d8

);{"diceNotation":"14d8","rollType":"damage","rollAction":"Acid Breath","rollDamageType":"acid"} acid damage on a failed save, or half as much damage on a successful one. Slowing Breath. The dragon

Dracohydra

Monsters Fizban's Treasury of Dragons

heads for each of its heads that died since its last turn, unless it has taken radiant damage since its last turn. The dracohydra regains 10 hit points for each head regrown this way. Reactive Heads

: 10 (1d10 + 5) damage of a type chosen by the dracohydra: acid;{"diceNotation":"1d10+5", "rollType":"damage", "rollAction":"Bite (Acid)", "rollDamageType":"acid"}, cold;{"diceNotation":"1d10+5

Mimic Legacy

Monsters Basic Rules (2014)

Shapechanger. The mimic can use its action to polymorph into an object or back into its true, amorphous form. Its statistics are the same in each form. Any equipment it is wearing or carrying isn't

transformed. It reverts to its true form if it dies. Adhesive (Object Form Only). The mimic adheres to anything that touches it. A Huge or smaller creature adhered to the mimic is also grappled by it

Rot Troll Legacy

Monsters Mordenkainen’s Tome of Foes

","rollDamageType":"necrotic"} necrotic damage, unless the troll has taken acid or fire damage since the end of its last turn.Multiattack. The troll makes three attacks: one with its bite and two with its claws

Ironscale Hydra

Monsters Mythic Odysseys of Theros

","rollDamageType":"acid"} acid damage. Hold Breath. The hydra can hold its breath for 1 hour. Multiple Heads. The hydra has five heads. While it has more than one head, the hydra has advantage on saving throws

hydra dies. At the end of its turn, it grows two heads for each of its heads that died since its last turn, unless it has taken fire damage since its last turn. The hydra regains 10 hit points for

Clay Golem Legacy

Monsters Basic Rules (2014)

Acid Absorption. Whenever the golem is subjected to acid damage, it takes no damage and instead regains a number of hit points equal to the acid damage dealt. Berserk. Whenever the golem starts its

continues to do so until it is destroyed or regains all its hit points. Immutable Form. The golem is immune to any spell or effect that would alter its form. Magic Resistance. The golem has advantage on

Spitting Mimic

Monsters Icewind Dale: Rime of the Frostmaiden

Shapechanger. The mimic can use its action to polymorph into an object or back into its true, amorphous form. Its statistics are the same in each form. Any equipment it is wearing or carrying isn't

transformed. It reverts to its true form if it dies. Adhesive (Object Form Only). The mimic adheres to anything that touches it. A Huge or smaller creature adhered to the mimic is also grappled by it

Animated Breath

Monsters Fizban's Treasury of Dragons

Chromatic Form. When created, the animated breath takes one of five forms, matching its creator’s breath weapon: Animated Breath (Acid Form);Acid, Animated Breath (Cold Form);Cold, Animated

":"bludgeoning"} bludgeoning damage plus 11 (2d10) damage of a type determined by the animated breath’s form: acid;{"diceNotation":"2d10","rollType":"damage","rollAction":"Slam","rollDamageType

Black Pudding Legacy

Monsters Basic Rules (2014)

it takes 4 (1d8);{"diceNotation":"1d8","rollType":"damage","rollAction":"Corrosive Form","rollDamageType":"acid"} acid damage. Any nonmagical weapon made of metal or wood that hits the pudding

Amorphous. The pudding can move through a space as narrow as 1 inch wide without squeezing. Corrosive Form. A creature that touches the pudding or hits it with a melee attack while within 5 feet of

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