Monsters P-R

Panther

Medium beast, unaligned

Armor Class 12

Hit Points 13 (3d8)

Speed 50 ft., climb 40 ft.

Skills Perception +4, Stealth +6

Senses passive Perception 14

Languages -

Challenge 1/4 (50 XP)

Keen Smell. The panther has advantage on Wisdom (Perception) checks that rely on smell.

Pounce. If the panther moves at least 20 feet straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a DC 12 Strength saving throw or be knocked prone. If the target is prone, the panther can make one bite attack against it as a bonus action.

Actions

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6+2) piercing damage.

Claw. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4+2) slashing damage.

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Pegasus

Large celestial, chaotic good

Armor Class 12

Hit Points 59 (7d10+21)

Speed 60 ft., fly 90 ft.

Saving Throws Dex +4, Wis +4, Cha +3

Skills Perception +6

Senses passive Perception 16

Languages understands Celestial, Common, Elvish, and Sylvan but can’t speak

Challenge 2 (450 XP)

Actions

Hooves. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 11 (2d6+4) bludgeoning damage.

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Phase Spider

Large monstrosity, unaligned

Armor Class 13 (natural armor)

Hit Points 32 (5d10+5)

Speed 30 ft., climb 30 ft.

Skills Stealth +6

Senses darkvision 60 ft., passive Perception 10

Languages -

Challenge 3 (700 XP)

Ethereal Jaunt. As a bonus action, the spider can magically shift from the Material Plane to the Ethereal Plane, or vice versa.

Spider Climb. The spider can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Web Walker. The spider ignores movement restrictions caused by webbing.

Actions

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 7 (1d10+2) piercing damage, and the target must make a DC 11 Constitution saving throw, taking 18 (4d8) poison damage on a failed save, or half as much damage on a successful one. If the poison damage reduces the target to 0 hit points, the target is stable but poisoned for 1 hour, even after regaining hit points, and is paralyzed while poisoned in this way.

A phase spider possesses the magical ability to phase in and out of the Ethereal Plane. It seems to appear out of nowhere and quickly vanishes after attacking. Its movement on the Ethereal Plane before coming back to the Material Plane makes it seem like it can teleport.

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Pit Fiend (Devil)

Large fiend (devil), lawful evil

Armor Class 19 (natural armor)

Hit Points 300 (24d10+168)

Speed 30 ft., fly 60 ft.

Saving Throws Dex +8, Con +13, Wis +10

Damage Resistances cold; bludgeoning, piercing, and slashing from nonmagical attacks that aren’t silvered

Damage Immunities fire, poison

Condition Immunities poisoned

Senses truesight 120 ft., passive Perception 14

Languages Infernal, telepathy 120 ft.

Challenge 20 (25,000 XP)

Fear Aura. Any creature hostile to the pit fiend that starts its turn within 20 feet of the pit fiend must make a DC 21 Wisdom saving throw, unless the pit fiend is incapacitated. On a failed save, the creature is frightened until the start of its next turn. If a creature’s saving throw is successful, the creature is immune to the pit fiend’s Fear Aura for the next 24 hours.

Magic Resistance. The pit fiend has advantage on saving throws against spells and other magical effects.

Magic Weapons. The pit fiend’s weapon attacks are magical.

Innate Spellcasting. The pit fiend’s spellcasting ability is Charisma (spell save DC 21). The pit fiend can innately cast the following spells, requiring no material Components

At will: detect magic, fireball

3/day each: hold monster, wall of fire

Actions

Multiattack. The pit fiend makes four attacks: one with its bite, one with its claw, one with its mace, and one with its tail.

Bite. Melee Weapon Attack: +14 to hit, reach 5 ft., one target. Hit: 22 (4d6+8) piercing damage. The target must succeed on a DC 21 Constitution saving throw or become poisoned. While poisoned in this way, the target can’t regain hit points, and it takes 21 (6d6) poison damage at the start of each of its turns. The poisoned target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Claw. Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 17 (2d8+8) slashing damage.

Mace. Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 15 (2d6+8) bludgeoning damage plus 21 (6d6) fire damage.

Tail. Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 24 (3d10+8) bludgeoning damage.

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Planetar (Angel)

Large celestial, lawful good

Armor Class 19 (natural armor)

Hit Points 200 (16d10+112)

Speed 40 ft., fly 120 ft.

Saving Throws Con +12, Wis +11, Cha +12

Skills Perception +11

Damage Resistances radiant; bludgeoning, piercing, and slashing from nonmagical attacks

Condition Immunities charmed, exhaustion, frightened

Senses truesight 120 ft., passive Perception 21

Languages all, telepathy 120 ft.

Challenge 16 (15,000 XP)

Angelic Weapons. The planetar’s weapon attacks are magical. When the planetar hits with any weapon, the weapon deals an extra 5d8 radiant damage (included in the attack).

Divine Awareness. The planetar knows if it hears a lie.

Innate Spellcasting. The planetar’s spellcasting ability is Charisma (spell save DC 20). The planetar can innately cast the following spells, requiring no material Components

At will: detect evil and good, invisibility (self only)

3/day each: blade barrier, dispel evil and good, flame strike, raise dead

1/day each: commune, control weather, insect plague

Magic Resistance. The planetar has advantage on saving throws against spells and other magical effects.

Actions

Multiattack. The planetar makes two melee attacks.

Greatsword. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 21 (4d6+7) slashing damage plus 22 (5d8) radiant damage.

Healing Touch (4/Day). The planetar touches another creature. The target magically regains 30 (6d8+3) hit points and is freed from any curse, disease, poison, blindness, or deafness.

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Plesiosaurus (Dinosaur)

Large beast, unaligned

Armor Class 13 (natural armor)

Hit Points 68 (8d10+24)

Speed 20 ft., swim 40 ft.

Skills Perception +3, Stealth +4

Senses passive Perception 13

Languages -

Challenge 2 (450 XP)

Hold Breath. The plesiosaurus can hold its breath for 1 hour.

Actions

Bite. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 14 (3d6+4) piercing damage.

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Poisonous Snake

Tiny beast, unaligned

Armor Class 13

Hit Points 2 (1d4)

Speed 30 ft., swim 30 ft.

Senses blindsight 10 ft., passive Perception 10

Languages -

Challenge 1/8 (25 XP)

Actions

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 1 piercing damage, and the target must make a DC 10 Constitution saving throw, taking 5 (2d4) poison damage on a failed save, or half as much damage on a successful one.

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Polar Bear

Large beast, unaligned

Armor Class 12 (natural armor)

Hit Points 42 (5d10+15)

Speed 40 ft., swim 30 ft.

Skills Perception +3

Senses passive Perception 13

Languages -

Challenge 2 (450 XP)

Keen Smell. The bear has advantage on Wisdom (Perception) checks that rely on smell.

Actions

Multiattack. The bear makes two attacks: one with its bite and one with its claws.

Bite. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 9 (1d8+5) piercing damage.

Claws. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 12 (2d6+5) slashing damage.

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Pony

Medium beast, unaligned

Armor Class 10

Hit Points 11 (2d8+2)

Speed 40 ft.

Senses passive Perception 10

Languages -

Challenge 1/8 (25 XP)

Actions

Hooves. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 7 (2d4+2) bludgeoning damage.

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Priest

Medium humanoid (any race), any alignment

Armor Class 13 (chain shirt)

Hit Points 27 (5d8 + 5)

Speed 30 ft.

Skills Medicine +7, Persuasion +3, Religion +5

Senses passive Perception 13

Languages any two languages

Challenge 2 (450 XP)

Divine Eminence. As a bonus action, the priest can expend a spell slot to cause its melee weapon attacks to magically deal an extra 10 (3d6) radiant damage to a target on a hit. This benefit lasts until the end of the turn. If the priest expends a spell slot of 2nd level or higher, the extra damage increases by 1d6 for each level above 1st.

Spellcasting. The priest is a 5th-level spellcaster. Its spellcasting ability is Wisdom (spell save DC 13, +5 to hit with spell attacks). The priest has the following cleric spells prepared:

Cantrips (at will): light, sacred flame, thaumaturgy 1st level (4 slots): cure wounds, guiding bolt, sanctuary 2nd level (3 slots): lesser restoration, spiritual weapon 3rd level (2 slots): dispel magic, spirit guardians

Actions

Mace. Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 3 (1d6) bludgeoning damage.

Priests bring the teachings of their gods to the common folk. They are the spiritual leaders of temples and shrines and often hold positions of influence in their communities. Evil priests might work openly under a tyrant, or they might be the leaders of religious sects hidden in the shadows of good society, overseeing depraved rites.

A priest typically has one or more acolytes to help with religious ceremonies and other sacred duties.

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Pseudodragon

Tiny dragon, neutral good

Armor Class 13 (natural armor)

Hit Points 7 (2d4+2)

Speed 15 ft., fly 60 ft.

Skills Perception +3, Stealth +4

Senses blindsight 10 ft., darkvision 60 ft., passive Perception 13

Languages understands Common and Draconic but can’t speak

Challenge 1/4 (50 XP)

Keen Senses. The pseudodragon has advantage on Wisdom (Perception) checks that rely on sight, hearing, or smell.

Magic Resistance. The pseudodragon has advantage on saving throws against spells and other magical effects.

Limited Telepathy. The pseudodragon can magically communicate simple ideas, emotions, and images telepathically with any creature within 100 feet of it that can understand a language.

Actions

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4+2) piercing damage.

Sting. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 4 (1d4+2) piercing damage, and the target must succeed on a DC 11 Constitution saving throw or become poisoned for 1 hour. If the saving throw fails by 5 or more, the target falls unconscious for the same duration, or until it takes damage or another creature uses an action to shake it awake.

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Purple Worm

Gargantuan monstrosity, unaligned

Armor Class 18 (natural armor)

Hit Points 247 (15d20+90)

Speed 50 ft., burrow 30 ft.

Saving Throws Con +11, Wis +4

Senses blindsight 30 ft., tremorsense 60 ft., passive Perception 9

Languages -

Challenge 15 (13,000 XP)

Tunneler. The worm can burrow through solid rock at half its burrow speed and leaves a 10-foot diameter tunnel in its wake.

Actions

Multiattack. The worm makes two attacks: one with its bite and one with its stinger.

Bite. Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 22 (3d8+9) piercing damage. If the target is a Large or smaller creature, it must succeed on a DC 19 Dexterity saving throw or be swallowed by the worm. A swallowed creature is blinded and restrained, it has total cover against attacks and other effects outside the worm, and it takes 21 (6d6) acid damage at the start of each of the worm’s turns.

If the worm takes 30 damage or more on a single turn from a creature inside it, the worm must succeed on a DC 21 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of the worm. If the worm dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 20 feet of movement, exiting prone.

Tail Stinger. Melee Weapon Attack: +14 to hit, reach 10 ft., one creature. Hit: 19 (3d6+9) piercing damage, and the target must make a DC 19 Constitution saving throw, taking 42 (12d6) poison damage on a failed save, or half as much damage on a successful one.

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Quasit (Demon)

Tiny fiend (demon, shapechanger), chaotic evil

Armor Class 13

Hit Points 7 (3d4)

Speed 40 ft.

Skills Stealth +5

Damage Resistances cold, fire, lightning; bludgeoning, piercing, and slashing from nonmagical attacks

Damage Immunities poison

Condition Immunities poisoned

Senses darkvision 120 ft., passive Perception 10

Languages Abyssal, Common

Challenge 1 (200 XP)

Shapechanger. The quasit can use its action to polymorph into a beast form that resembles a bat (speed 10 ft. fly 40 ft.), a centipede (40 ft., climb 40 ft.), or a toad (40 ft., swim 40 ft.), or back into its true form. Its statistics are the same in each form, except for the speed changes noted. Any equipment it is wearing or carrying isn’t transformed. It reverts to its true form if it dies.

Magic Resistance. The quasit has advantage on saving throws against spells and other magical effects.

Actions

Claws (Bite in Beast Form). Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d4+3) piercing damage, and the target must succeed on a DC 10 Constitution saving throw or take 5 (2d4) poison damage and become poisoned for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Scare (1/Day). One creature of the quasit’s choice within 20 feet of it must succeed on a DC 10 Wisdom saving throw or be frightened for 1 minute. The target can repeat the saving throw at the end of each of its turns, with disadvantage if the quasit is within line of sight, ending the effect on itself on a success.

Invisibility. The quasit magically turns invisible until it attacks or uses Scare, or until its concentration ends (as if concentrating on a spell). Any equipment the quasit wears or carries is invisible with it.

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Quipper

Tiny beast, unaligned

Armor Class 13

Hit Points 1 (1d4-1)

Speed 0 ft., swim 40 ft.

Senses darkvision 60 ft., passive Perception 8

Languages -

Challenge 0 (10 XP)

Blood Frenzy. The quipper has advantage on melee attack rolls against any creature that doesn’t have all its hit points.

Water Breathing. The quipper can breathe only underwater.

Actions

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 1 piercing damage.

A quipper is a carnivorous fish with sharp teeth. Quippers can adapt to any aquatic environment, including cold subterranean lakes. They frequently gather in swarms; the statistics for a swarm of quippers appear later in this appendix.

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Rakshasa

Medium fiend, lawful evil

Armor Class 16 (natural armor)

Hit Points 110 (13d8+52)

Speed 40 ft.

Skills Deception +10, Insight +8

Damage Vulnerabilities piercing from magic weapons wielded by good creatures

Damage Immunities bludgeoning, piercing, and slashing from nonmagical attacks

Senses darkvision 60 ft., passive Perception 13

Languages Common, Infernal

Challenge 13 (10,000 XP)

Limited Magic Immunity. The rakshasa can’t be affected or detected by spells of 6th level or lower unless it wishes to be. It has advantage on saving throws against all other spells and magical effects.

Innate Spellcasting. The rakshasa’s innate spellcasting ability is Charisma (spell save DC 18, +10 to hit with spell attacks). The rakshasa can innately cast the following spells, requiring no material Components

At will: detect thoughts, disguise self, mage hand, minor illusion

3/day each: charm person, detect magic, invisibility, major image, suggestion

1/day each: dominate person, fly, plane shift, true seeing

Actions

Multiattack. The rakshasa makes two claw attacks.

Claw. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 9 (2d6+2) slashing damage, and the target is cursed if it is a creature. The magical curse takes effect whenever the target takes a short or long rest, filling the target’s thoughts with horrible images and dreams. The cursed target gains no benefit from finishing a short or long rest. The curse lasts until it is lifted by a remove curse spell or similar magic.

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Rat

Tiny beast, unaligned

Armor Class 10

Hit Points 1 (1d4-1)

Speed 20 ft.

Senses darkvision 30 ft., passive Perception 10

Languages -

Challenge 0 (10 XP)

Keen Smell. The rat has advantage on Wisdom (Perception) checks that rely on smell.

Actions

Bite. Melee Weapon Attack: +0 to hit, reach 5 ft., one target. Hit: 1 piercing damage.

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Raven

Tiny beast, unaligned

Armor Class 12

Hit Points 1 (1d4-1)

Speed 10 ft., fly 50 ft.

Skills Perception +3

Senses passive Perception 13

Languages -

Challenge 0 (10 XP)

Mimicry. The raven can mimic simple sounds it has heard, such as a person whispering, a baby crying, or an animal chittering. A creature that hears the sounds can tell they are imitations with a successful DC 10 Wisdom (Insight) check.

Actions

Beak. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 1 piercing damage.

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Reef Shark

Medium beast, unaligned

Armor Class 12 (natural armor)

Hit Points 22 (4d8+4)

Speed 0 ft., swim 40 ft.

Skills Perception +2

Senses blindsight 30 ft., passive Perception 12

Languages -

Challenge 1/2 (100 XP)

Pack Tactics. The shark has advantage on an attack roll against a creature if at least one of the shark’s allies is within 5 feet of the creature and the ally isn’t incapacitated.

Water Breathing. The shark can breathe only underwater.

Actions

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 (1d8+2) piercing damage.

Smaller than giant sharks and hunter sharks, reef sharks inhabit shallow waters and coral reefs, gathering in small packs to hunt. A full-grown specimen measures 6 to 10 feet long.

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Remorhaz

Huge monstrosity, unaligned

Armor Class 17 (natural armor)

Hit Points 195 (17d12+85)

Speed 30 ft., burrow 20 ft.

Damage Immunities cold, fire

Senses darkvision 60 ft., tremorsense 60 ft., passive Perception 10

Languages -

Challenge 11 (7,200 XP)

Heated Body. A creature that touches the remorhaz or hits it with a melee attack while within 5 feet of it takes 10 (3d6) fire damage.

Actions

Bite. Melee Weapon Attack: +11 to hit, reach 10 ft., one target. Hit: 40 (6d10+7) piercing damage plus 10 (3d6) fire damage. If the target is a creature, it is grappled (escape DC 17). Until this grapple ends, the target is restrained, and the remorhaz can’t bite another target.

Swallow. The remorhaz makes one bite attack against a Medium or smaller creature it is grappling. If the attack hits, that creature takes the bite’s damage and is swallowed, and the grapple ends. While swallowed, the creature is blinded and restrained, it has total cover against attacks and other effects outside the remorhaz, and it takes 21 (6d6) acid damage at the start of each of the remorhaz’s turns.

If the remorhaz takes 30 damage or more on a single turn from a creature inside it, the remorhaz must succeed on a DC 15 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of the remorhaz. If the remorhaz dies, a swallowed creature is no longer restrained by it and can escape from the corpse using 15 feet of movement, exiting prone.

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Rhinoceros

Large beast, unaligned

Armor Class 11 (natural armor)

Hit Points 45 (6d10+12)

Speed 40 ft.

Senses passive Perception 11

Languages -

Challenge 2 (450 XP)

Charge. If the rhinoceros moves at least 20 feet straight toward a target and then hits it with a gore attack on the same turn, the target takes an extra 9 (2d8) bludgeoning damage. If the target is a creature, it must succeed on a DC 15 Strength saving throw or be knocked prone.

Actions

Gore. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 14 (2d8+5) bludgeoning damage.

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Riding Horse

Large beast, unaligned

Armor Class 10

Hit Points 13 (2d10+2)

Speed 60 ft.

Senses passive Perception 10

Languages -

Challenge 1/4 (50 XP)

Actions

Hooves. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (2d4+3) bludgeoning damage.

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Roc

Gargantuan monstrosity, unaligned

Armor Class 15 (natural armor)

Hit Points 248 (16d20+80)

Speed 20 ft., fly 120 ft.

Saving Throws Dex +4, Con +9, Wis +4, Cha +3

Skills Perception +4

Senses passive Perception 14

Languages -

Challenge 11 (7,200 XP)

Keen Sight. The roc has advantage on Wisdom (Perception) checks that rely on sight.

Actions

Multiattack. The roc makes two attacks: one with its beak and one with its talons.

Beak. Melee Weapon Attack: +13 to hit, reach 10 ft., one target. Hit: 27 (4d8+9) piercing damage.

Talons. Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 23 (4d6+9) slashing damage, and the target is grappled (escape DC 19). Until this grapple ends, the target is restrained, and the roc can’t use its talons on another target.

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Roper

Large monstrosity, neutral evil

Armor Class 20 (natural armor)

Hit Points 93 (11d10+33)

Speed 10 ft., climb 10 ft.

Skills Perception +6, Stealth +5

Senses darkvision 60 ft., passive Perception 16

Languages -

Challenge 5 (1,800 XP)

False Appearance. While the roper remains motionless, it is indistinguishable from a normal cave formation, such as a stalagmite.

Grasping Tendrils. The roper can have up to six tendrils at a time. Each tendril can be attacked (AC 20; 10 hit points; immunity to poison and psychic damage). Destroying a tendril deals no damage to the roper, which can extrude a replacement tendril on its next turn. A tendril can also be broken if a creature takes an action and succeeds on a DC 15 Strength check against it.

Spider Climb. The roper can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Actions

Multiattack. The roper makes four attacks with its tendrils, uses Reel, and makes one attack with its bite.

Bite. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 22 (4d8+4) piercing damage.

Tendril. Melee Weapon Attack: +7 to hit, reach 50 ft., one creature. Hit: The target is grappled (escape DC 15). Until the grapple ends, the target is restrained and has disadvantage on Strength checks and Strength saving throws, and the roper can’t use the same tendril on another target.

Reel. The roper pulls each creature grappled by it up to 25 feet straight toward it.

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Rug of Smothering (Animated Object)

Large construct, unaligned

Armor Class 12

Hit Points 33 (6d10)

Speed 10 ft.

Damage Immunities poison, psychic

Condition Immunities blinded, charmed, deafened, frightened, paralyzed, petrified, poisoned

Senses blindsight 60 ft. (blind beyond this radius), passive Perception 6

Languages -

Challenge 2 (450 XP)

Antimagic Susceptibility. The rug is incapacitated while in the area of an antimagic field. If targeted by dispel magic, the rug must succeed on a Constitution saving throw against the caster’s spell save DC or fall unconscious for 1 minute.

Damage Transfer. While it is grappling a creature, the rug takes only half the damage dealt to it, and the creature grappled by the rug takes the other half.

False Appearance. While the rug remains motionless, it is indistinguishable from a normal rug.

Actions

Smother. Melee Weapon Attack: +5 to hit, reach 5 ft., one Medium or smaller creature. Hit: The creature is grappled (escape DC 13). Until this grapple ends, the target is restrained, blinded, and at risk of suffocating, and the rug can’t smother another target. In addition, at the start of each of the target’s turns, the target takes 10 (2d6+3) bludgeoning damage.

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Rust Monster

Medium monstrosity, unaligned

Armor Class 14 (natural armor)

Hit Points 27 (5d8+5)

Speed 40 ft.

Senses darkvision 60 ft., passive Perception 11

Languages -

Challenge 1/2 (100 XP)

Iron Scent. The rust monster can pinpoint, by scent, the location of ferrous metal within 30 feet of it.

Rust Metal. Any nonmagical weapon made of metal that hits the rust monster corrodes. After dealing damage, the weapon takes a permanent and cumulative -1 penalty to damage rolls. If its penalty drops to -5, the weapon is destroyed. Nonmagical ammunition made of metal that hits the rust monster is destroyed after dealing damage.

Actions

Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 5 (1d8+1) piercing damage.

Antennae. The rust monster corrodes a nonmagical ferrous metal object it can see within 5 feet of it. If the object isn’t being worn or carried, the touch destroys a 1-foot cube of it. If the object is being worn or carried by a creature, the creature can make a DC 11 Dexterity saving throw to avoid the rust monster’s touch.

If the object touched is either metal armor or a metal shield being worn or carried, its takes a permanent and cumulative -1 penalty to the AC it offers. Armor reduced to an AC of 10 or a shield that drops to a +0 bonus is destroyed. If the object touched is a held metal weapon, it rusts as described in the Rust Metal trait.