Meduim Undead, Lawful Evil

Armor Class 13

Hit Points 40(9d8)

Speed 0ft., Fly 40ft.(hover)

Saving Throws Int +6, Wis +5

Skills Perception +5, Stealth +6

Damage Resistances Acid, Fire, Lightning, Thunder, Bludgeoning, Piercing, and Slashing from nonmagical attacks

Damage Immunities Cold, Necrotic, Poison

Condition Immunities Charmed, Exhaustion, Frightened, Grappled, Paralyzed, Petrified, Poisoned, Prone, Restrained

Senses darkvision 60 ft., Passive Perception 15

Languages the languages it knew in life

Challenge 5 (1,800 XP)

Profiency Bonus +3

Incorporeal Movement The allip can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.

Actions

Maddening Touch Melee Spell Attack: +6 to hit, reach 5 ft., one target. Hit: 17 (4d6 + 3) psychic damage.

Whispers of Madness The allip chooses up to three creatures it can see within 60 feet of it. Each target must succeed on a DC 14 Wisdom saving throw, or it takes 7 (1d8 + 3) psychic damage and must use its reaction to make a melee weapon attack against one creature of the allip's choice that the allip can see. Constructs and undead are immune to this effect.

Howling Babble (Recharge 6) Each creature within 30 feet of the allip that can hear it must make a DC 14 Wisdom saving throw. On a failed save, a target takes 12 (2d8 + 3) psychic damage, and it is stunned until the end of its next turn. On a successful save, it takes half as much damage and isn't stunned. Constructs and undead are immune to this effect.

Environment: Mountain

Source: MM, page 12. Also found in PotA; SKT; ToA; EGW; IDRotF.

Medium humanoid (any race), any non-good alignment

Armor Class 12 (leather armor)

Hit Points 9 (2d8)

Speed 30ft.

Skills Deception +2, Religion +2

Senses Passive Perception 10

Languages any one language (usually Common)

Challenge 1/8(25 XP)

Proficiency Bonus (PB) +2

Dark Devotion The cultist has advantage on saving throws against being charmed or frightened.

Actions

Scimitar Melee Weapon Attack: +3 to hit, reach 5 ft., one creature. Hit: 4 (1d6 + 1) slashing damage.

Source: MM, page 345. Also found in CoS; HotDQ; LMoP; PotA; RoT; SKT; WDH; WDMM; GoS; DC; DIP; SLW; BGDIA; RMBRE; IMR; EGW; MOT; IDRotF; CM. Available in the SRD.

Medium Undead, Lawful Evil

Armor Class 12 (15 with mage armor) Hit Points 36 (8d8) Speed 30 ft.

Saving Throws Int +4, Cha +5

Skills Arcana +4, History +4

Damage Resistances Necrotic, Bludgeoning, Piercing, and Slashing from nonmagical attacks that aren't silvered

Damage Immunities Poison

Condition Immunities Exhaustion, Poisoned

Senses Darkvision 60 ft., Passive Perception 11

Languages Those known in life Challenge 4 (1,100 XP)

Proficiency Bonus (PB) +2

Innate Spellcasting The deathlock's innate spellcasting ability is Charisma (spell save DC 13). It can innately cast the following spells, requiring no material components: At will: Detect Magic, Disguise Self, Mage Armor

Spellcasting The deathlock is a 5th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 13, +5 to hit with spell attacks). It regains its expended spell slots when it finishes a short or long rest. It knows the following warlock spells:

Cantrips (at will): Chill Touch, Eldritch Blast, Mage Hand 1st-3rd level (2 3rd-level slots): Arms of Hadar, Dispel Magic, Hold Person, Hunger of Hadar, Invisibility, Spider Climb

Turn Resistance The deathlock has advantage on saving throws against any effect that turns undead.

Actions

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

Environment: Urban

Source: MTF, page 128

Medium Undead, Lawful Evil

Armor Class 13 (16 with mage armor)

Hit Points 110 (20d8 + 20)

Speed 30ft.

Saving Throws Int +5, Cha +6

Skills Arcana +5, History +5, Perception +4

Damage Resistances Necrotic, Bludgeoning, Piercing, and Slashing from nonmagical attacks that aren't silvered

Damage Immunities Poison

Condition Immunities Exhaustion, Poisoned

Senses Darkvision 120 ft. (including magical darkness), Passive Perception 14

Languages Those known in life

Challenge 8(3,900 XP)

Proficiency Bonus (PB) +3

Innate Spellcasting The deathlock's innate spellcasting ability is Charisma (spell save DC 14). It can innately cast the following spells, requiring no material components: At will: Detect Magic, Disguise Self, Mage Armor

Spellcasting The deathlock is a 10th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 14, +6 to hit with spell attacks). It regains its expended spell slots when it finishes a short or long rest. It knows the following warlock spells:

Cantrips (at will): Chill Touch, Mage Hand, Minor Illusion, Poison Spray

1st-5th level (2 5th-level slots): Arms of Hadar, Blight, Counterspell, Crown of Madness, Darkness, Dimension Door, Dispel Magic, Fly, Hold Monster, Invisibility

Turn Resistance The deathlock has advantage on saving throws against any effect that turns undead.

Actions

Deathly Claw Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (3d6 + 3) necrotic damage).

Grave Bolts Ranged Spell Attack: +6 to hit, range 120 ft., one or two targets. Hit: 18 (4d8) necrotic damage. If the target is Large or smaller, it must succeed on a DC 16 Strength saving throw or become restrained as shadowy tendrils wrap around it for 1 minute. A restrained target can use its action to repeat the saving throw, ending the effect on itself on a success.

Environment: Urban

Source: MTF, page 129. Also found in SDW.

Medium Undead, Lawful Evil

Armor Class 12 (15 with mage armor)

Hit Points 37 (5d8 + 15)

Speed 30ft.

Saving Throws Wis +4

Skills Arcana +3, Perception +4

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

Damage Immunities poison

Condition Immunities exhaustion, poisoned

Senses darkvision 60 ft., passive Perception 14

Languages the languages it knew in life

Challenge 3 (700 XP)

Innate Spellcasting The wight's innate spellcasting ability is Charisma (spell save DC 13). It can innately cast the following spells, requiring no verbal or material components:

At will: detect magic, disguise self, mage armor

1/day each: fear, hold person, misty step

Sunlight Sensitivity While in sunlight, the wight has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.

Actions

Multiattack The wight attacks twice with Grave Bolt.

Grave Bolt Ranged Spell Attack: +5 to hit, range 120 ft., one target. Hit: 7 (1d8 + 3) necrotic damage.

Life Drain Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 9 (2d6 + 2) necrotic damage. The target must succeed on a DC 13 Constitution saving throw or its hit point maximum is reduced by an amount equal to the damage taken. This reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0.

A humanoid slain by this attack rises 24 hours later as a zombie under the wight's control, unless the humanoid is restored to life or its body is destroyed. The wight can have no more than twelve zombies under its control at one time.

Source: MTF, page 129. Also found in TftYP, page 233.

Medium humanoid (elf), neutral evil

Armor Class 15 (chain shirt)

Hit Points 15 (3d8+2)

Speed 30ft.

Skills Perception +2, Stealth +4

Senses Darkvision 120 ft., Passive Perception 12

Languages Elvish, Undercommon

Challenge 1/4 (50 XP)

Proficiency Bounus +2

Fey Ancestry The drow has advantage on saving throws against being charmed, and magic can't put the drow to sleep.

Innate Spellcasting The drow's spellcasting ability is Charisma (spell save DC 11). It can innately cast the following spells, requiring no material components: At will: dancing lights. 1/day each: darkness, faerie fire

Sunlight Sensitivity: While in sunlight, the drow has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.

Actions

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

Hand Crossbow Ranged Weapon Attack: +4 to hit, range 30/120 ft., one target. Hit: 5 (1d6 + 2) piercing damage, and the target must succeed on a DC 13 Constitution saving throw or be poisoned for 1 hour. If the saving throw fails by 5 or more, the target is also unconscious while poisoned in this way. The target wakes up if it takes damage or if another creature takes an action to shake it awake.

Environment: Underdark

Source: MM, page 128. Also found in TftYP; WDH; WDMM; DC; DIP; BGDIA; EGW; CM. Available in the SRD.

Medium humanoid (elf), neutral evil

Armor Class 12 (15 with mage armor)

Hit Points 45(10d8+4)

Speed 30ft.

Skills Arcana +6, Deception +4, Perception +4, Stealth +5

Senses Darkvision 120 ft., Passive Perception 14

Languages Elvish, Undercommon

Challenge 7 (2,900 XP)

Proficiency Bonus +3

Fey Ancestry The drow has advantage on saving throws against being charmed, and magic can't put the drow to sleep.

Innate Spellcasting The drow's spellcasting ability is Charisma (spell save DC 12). It can innately cast the following spells, requiring no material components:

At will: dancing lights

1/day each: darkness, faerie fire, levitate (self only)

Spellcasting The drow is a 10th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 14, +6 to hit with spell attacks). The drow has the following wizard spells prepared:

Cantrips (at will): mage hand, minor illusion, poison spray, ray of frost

1st level (4 slots): mage armor, magic missile, shield, witch bolt

2nd level (3 slots): alter self, misty step, web

3rd level (3 slots): fly, lightning bolt

4th level (3 slots): Evard's black tentacles, greater invisibility

5th level (2 slots): cloudkill

Sunlight Sensitivity While in sunlight, the drow has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.

Actions

Staff Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 2 (1d6 - 1) bludgeoning damage, or 3 (1d8 - 1) bludgeoning damage if used with two hands, plus 3 (1d6) poison damage.

Summon Demon (1/Day) The drow magically summons a quasit, or attempts to summon a shadow demon with a 50 percent chance of success. The summoned demon appears in an unoccupied space within 60 feet of its summoner, acts as an ally of its summoner, and can't summon other demons. It remains for 10 minutes, until it or its summoner dies, or until its summoner dismisses it as an action.

Medium elemental, neutral

Armor Class 18 (plate armor)

Hit Points 127 (17d8 + 51)

Speed 30ft.

Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks

Damage Immunities poison

Condition Immunities paralyzed, petrified, poisoned, prone

Senses darkvision 60 ft., passive Perception 10

Languages Terran, one language of its creator's choice

Challenge 7 (2,900 XP)

Proficiency Bonus +3

Magic Weapons The myrmidon's weapon attacks are magical.

Actions

Multiattack The myrmidon makes two maul attacks.

Maul Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage.

Thunderous Strike (Recharge 6) The myrmidon makes one maul attack. On a hit, the target takes an extra 16 (3d10) thunder damage, and the target must succeed on a DC 14 Strength saving throw or be knocked prone.

Source: MTF, page 202. Also found in PotA, page 212.

Medium aberration, lawful evil

Armor Class 15 (natural armor)

Hit Points 67 (9d8 + 27)

Speed 0 ft., fly 20 ft. (hover)

Saving Throws Int +5, Wis +5, Cha +4

Skills Perception +5

Condition Immunities Prone

Senses Darkvision 120 ft., Passive Perception 15

Languages Deep Speech, Undercommon

Challenge 6 (2,300 XP)

Proficiency Bonus +3

Death Throes When the gauth dies, the magical energy within it explodes, and each creature within 10 feet of it must make a DC 14 Dexterity saving throw, taking 13 (3d8) force damage on a failed save, or half as much damage on a successful one.

Stunning Gaze When a creature that can see the gauth's central eye starts its turn within 30 feet of the gauth, the gauth can force it to make a DC 14 Wisdom saving throw if the gauth isn't incapacitated and can see the creature. A creature that fails the save is stunned until the start of its next turn, when it can avert its eyes again. If the creature looks at the gauth in the meantime, it must immediately make the save.

Actions

Bite Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 9 (2d8) piercing damage.

Eye Rays The gauth shoots three of the following magical eye rays at random (reroll duplicates), choosing one to three targets it can see within 120 feet of it:

1. Devour Magic Ray The targeted creature must succeed on a DC 14 Dexterity saving throw or have one of its magic items lose all magical properties until the start of the gauth's next turn. If the object is a charged item, it also loses 1d4 charges. Determine the affected item randomly, ignoring single-use items such as potions and scrolls.

2. Enervation Ray The targeted creature must make a DC 14 Constitution saving throw, taking 18 (4d8) necrotic damage on a failed save, or half as much damage on a successful one.

3. Pushing Ray The targeted creature must succeed on a DC 14 Strength saving throw or be pushed up to 15 feet directly away from the gauth and have its speed halved until the start of the gauth's next turn.

4. Fire Ray The targeted creature must succeed on a DC 14 Dexterity saving throw or take 22 (4d10) fire damage.

5. Paralyzing Ray The targeted creature must succeed on a DC 14 Constitution saving throw or be paralyzed 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.

6. Sleep Ray The targeted creature must succeed on a DC 14 Wisdom saving throw or fall asleep and remain unconscious for 1 minute. The target awakens if it takes damage or another creature takes an action to wake it. This ray has no effect on constructs and undead.

Environment: Underdark

Source: VGM, page 125

Large Ooze, Unaligned

Armor Class 6

Hit Points 84 (8d10 + 40)

Speed 15ft.

Condition Immunities Blinded, Charmed, Deafened, Exhaustion, Frightened, Prone

Senses Blindsight 60 ft. (blind beyond this radius), Passive Perception 8

Languages None

Challenge 2 (450 XP)

Proficiency Bonus +2

Ooze Cube The cube takes up its entire space. Other creatures can enter the space, but a creature that does so is subjected to the cube's

Engulf and has disadvantage on the saving throw. Creatures inside the cube can be seen but have total cover. A creature within 5 feet of the cube can take an action to pull a creature or object out of the cube. Doing so requires a successful DC 12 Strength check, and the creature making the attempt takes 10 (3d6) acid damage. The cube can hold only one Large creature or up to four Medium or smaller creatures inside it at a time.

Transparent Even when the cube is in plain sight, it takes a successful DC 15 Wisdom (Perception) check to spot a cube that has neither moved nor attacked. A creature that tries to enter the cube's space while unaware of the cube is surprised by the cube.

Actions

Pseudopod Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 10 (3d6) acid damage.

Engulf The cube moves up to its speed. While doing so, it can enter Large or smaller creatures' spaces. Whenever the cube enters a creature's space, the creature must make a DC 12 Dexterity saving throw. On a successful save, the creature can choose to be pushed 5 feet back or to the side of the cube. A creature that chooses not to be pushed suffers the consequences of a failed saving throw. On a failed save, the cube enters the creature's space, and the creature takes 10 (3d6) acid damage and is engulfed. The engulfed creature can't breathe, is restrained, and takes 21 (6d6) acid damage at the start of each of the cube's turns. When the cube moves, the engulfed creature moves with it. An engulfed creature can try to escape by taking an action to make a DC 12 Strength check. On a success, the creature escapes and enters a space of its choice within 5 feet of the cube.

Environment: Underdark

Source: MM, page 242. Also found in TftYP; WDMM; GoS; ERLW; IDRotF. Available in the SRD.

Medium undead, any alignment*

Armor Class 11

Hit Points 45 (10d8)

Speed 0 ft., fly 40 ft. (hover)

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

Damage Immunities cold, necrotic, poison

Condition Immunities charmed, exhaustion, frightened, grappled, paralyzed, petrified, poisoned, prone, restrained

Senses darkvision 60 ft., passive Perception 11

Languages any languages it knew in life

Challenge 4 (1,100 XP)

Proficiency Bonus +2

Ethereal Sight The ghost can see 60 feet into the Ethereal Plane when it is on the Material Plane, and vice versa. Incorporeal Movement The ghost can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.

Actions

Withering Touch Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 17 (4d6 + 3) necrotic damage.

Etherealness The ghost enters the Ethereal Plane from the Material Plane, or vice versa. It is visible on the Material Plane while it is in the Border Ethereal, and vice versa, yet it can't affect or be affected by anything on the other plane.

Horrifying Visage Each non-undead creature within 60 feet of the ghost that can see it must succeed on a DC 13 Wisdom saving throw or be frightened for 1 minute. If the save fails by 5 or more, the target also ages 1d4 × 10 years. A frightened target can repeat the saving throw at the end of each of its turns, ending the frightened condition on itself on a success. If a target's saving throw is successful or the effect ends for it, the target is immune to this ghost's Horrifying Visage for the next 24 hours. The aging effect can be reversed with a greater restoration spell, but only within 24 hours of it occurring.

Possession (Recharge 6) One humanoid that the ghost can see within 5 feet of it must succeed on a DC 13 Charisma saving throw or be possessed by the ghost; the ghost then disappears, and the target is incapacitated and loses control of its body. The ghost now controls the body but doesn't deprive the target of awareness. The ghost can't be targeted by any attack, spell, or other effect, except ones that turn undead, and it retains its alignment, Intelligence, Wisdom, Charisma, and immunity to being charmed and frightened. It otherwise uses the possessed target's statistics, but doesn't gain access to the target's knowledge, class features, or proficiencies. The possession lasts until the body drops to 0 hit points, the ghost ends it as a bonus action, or the ghost is turned or forced out by an effect like the dispel evil and good spell. When the possession ends, the ghost reappears in an unoccupied space within 5 feet of the body. The target is immune to this ghost's Possession for 24 hours after succeeding on the saving throw or after the possession ends.

Environment: Underdark, Urban

Source: MM, page 147. Also found in CoS; PotA; RoT; SKT; TftYP; WDH; WDMM; GoS; DC; DIP; SLW; SDW; BGDIA; ERLW; EGW; IDRotF; TCE; CM. Available in the SRD.

Large Fiend (Demon), Chaotic Evil

Armor Class 17(Natural Armor)

Hit Points 157 (15d10 + 75)

Speed 40ft.

Saving Throws Str +9, Con +9, Wis +7, Cha +7

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

Damage Immunities poison

Condition Immunities poisoned

Senses truesight 120 ft., passive Perception 13

Languages Abyssal, telepathy 120 ft.

Challenge 9 (5,000 XP)

Proficiency Bonus +4

Innate Spellcasting The glabrezu's spellcasting ability is Intelligence (spell save DC 16). The glabrezu can innately cast the following spells, requiring no material components:

At will: darkness, detect magic, dispel magic

1/day each: confusion, fly, power word stun

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

Actions

Multiattack The glabrezu makes four attacks: two with its pincers and two with its fists. Alternatively, it makes two attacks with its pincers and casts one spell.

Pincer Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 16 (2d10 + 5) bludgeoning damage. If the target is a Medium or smaller creature, it is grappled (escape DC 15). The glabrezu has two pincers, each of which can grapple only one target.

Fist Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 7 (2d4 + 2) bludgeoning damage.

Source: MM, page 58. Also found in TftYP; WDMM; GoS; BGDIA; EGW. Available in the SRD.

Medium humanoid (grimlock), neutral evil

Armor Class 11

Hit Points 11 (2d8 + 2)

Speed 30ft.

Skills Athletics +5, Perception +3, Stealth +3

Condition Immunities blinded

Senses blindsight 30 ft. or 10 ft. while deafened (blind beyond this radius), passive Perception 13

Languages Undercommon

Challenge 1/4 (50 XP)

Proficiency Bonus +2

Blind Senses The grimlock can't use its blindsight while deafened and unable to smell.

Keen Hearing and Smell The grimlock has advantage on Wisdom (Perception) checks that rely on hearing or smell.

Stone Camouflage The grimlock has advantage on Dexterity (Stealth) checks made to hide in rocky terrain.

Actions

Spiked Bone Club Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d4 + 3) bludgeoning damage plus 2 (1d4) piercing damage.

Environment: Underdark

Source: MM, page 175. Also found in WDMM. Available in the SRD.

Small humanoid (grung), lawful evil

Armor Class 12

Hit Points 11 (2d6 + 4)

Speed 25ft., Climb 25ft.

Saving Throws Dex +4

Skills Athletics +2, Perception +2, Stealth +4, Survival +2

Damage Immunities poison

Condition Immunities poisoned

Senses Passive Perception 12

Languages Grung

Challenge 1/4 (50 XP)

Proficiency Bonus +2

Amphibious The grung can breathe air and water.

Poisonous Skin Any creature that grapples the grung or otherwise comes into direct contact with the grung's skin must succeed on a DC 12 Constitution saving throw or become poisoned for 1 minute. A poisoned creature no longer in direct contact with the grung can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Standing Leap The grung's long jump is up to 25 feet and its high jump is up to 15 feet, with or without a running start.

Actions

Dagger Melee or Ranged Weapon Attack: +4 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 4 (1d4 + 2) piercing damage, and the target must succeed on a DC 12 Constitution saving throw or take 5 (2d4) poison damage.

Environment: Forest Source: VGM, page 156. Also found in ToA.

Huge giant, chaotic evil

Armor Class 13 (natural Armor)

Hit Points 105 (10d12 + 40)

Speed 40ft.

Skills Perception +2

Senses passive Perception 12

Languages Giant

Challenge 5 (1,800 XP)

Proficiency Bonus +3

Actions

Multiattack The giant makes two greatclub attacks.

Greatclub Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 18 (3d8 + 5) bludgeoning damage.

Rock Ranged Weapon Attack: +8 to hit, range 60/240 ft., one target. Hit: 21 (3d10 + 5) bludgeoning damage.

Environment: Hill

Source: MM, page 155. Also found in PotA; RoT; SKT; TftYP; GoS; ERLW; EGW. Available in the SRD.

Medium aberration, lawful evil

Armor Class 15 (breastplate)

Hit Points 71 (13d8 + 13)

Speed 30ft.

Saving Throws Int +7, Wis +6, Cha +6

Skills Arcana +7, Deception +6, Insight +6, Perception +6, Persuasion +6, Stealth +4

Senses darkvision 120 ft., passive Perception 16

Languages Deep Speech, Undercommon, telepathy 120 ft.

Challenge 7 (2,900 XP)

Proficiency Bonus +3

Innate Spellcasting (Psionics) The mind flayer's innate spellcasting ability is Intelligence (spell save DC 15). It can innately cast the following spells, requiring no components:

At will: detect thoughts, levitate

1/day each: dominate monster, plane shift (self only)

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

Actions

Tentacles Melee Weapon Attack: +7 to hit, reach 5 ft., one creature. Hit: 15 (2d10 + 4) psychic damage. If the target is Medium or smaller, it is grappled (escape DC 15) and must succeed on a DC 15 Intelligence saving throw or be stunned until this grapple ends.

Extract Brain Melee Weapon Attack: +7 to hit, reach 5 ft., one incapacitated humanoid grappled by the mind flayer. Hit: The target takes 55 (10d10) piercing damage. If this damage reduces the target to 0 hit points, the mind flayer kills the target by extracting and devouring its brain.

Mind Blast (Recharge 5–6) The mind flayer magically emits psychic energy in a 60-foot cone. Each creature in that area must succeed on a DC 15 Intelligence saving throw or take 22 (4d8 + 4) psychic damage and be stunned for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Environment: Underdark

Source: MM, page 222. Also found in TftYP; WDH; WDMM; ERLW; IMR; IDRotF; TCE.

Medium aberration, lawful evil

Armor Class 15 (breastplate)

Hit Points 71 (13d8 + 13)

Speed 30ft.

Saving Throws Int +7, Wis +6, Cha +6

Skills Arcana +7, Deception +6, Insight +6, Perception +6, Persuasion +6, Stealth +4

Senses darkvision 120 ft., passive Perception 16

Languages Deep Speech, Undercommon, telepathy 120 ft.

Challenge 8 (3,900 XP)

Proficiency Bonus +3

Innate Spellcasting (Psionics) The mind flayer's innate spellcasting ability is Intelligence (spell save DC 15). It can innately cast the following spells, requiring no components:

At will: detect thoughts, levitate

1/day each: dominate monster, plane shift (self only)

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

Spellcasting The mind flayer is a 10th-level spellcaster. Its spellcasting ability is Intelligence (save DC 15, +7 to hit with spell attacks). The mind flayer has the following wizard spells prepared:

Cantrips (at will): blade ward, dancing lights, mage hand, shocking grasp

1st level (4 slots): detect magic, disguise self, shield, sleep

2nd level (3 slots): blur, invisibility, ray of enfeeblement

3rd level (3 slots): clairvoyance, lightning bolt, sending

4th level (3 slots): confusion, hallucinatory terrain

5th level (2 slots): telekinesis, wall of force

Actions

Tentacles Melee Weapon Attack: +7 to hit, reach 5 ft., one creature. Hit: 15 (2d10 + 4) psychic damage. If the target is Medium or smaller, it is grappled (escape DC 15) and must succeed on a DC 15 Intelligence saving throw or be stunned until this grapple ends.

Extract Brain Melee Weapon Attack: +7 to hit, reach 5 ft., one incapacitated humanoid grappled by the mind flayer. Hit: The target takes 55 (10d10) piercing damage. If this damage reduces the target to 0 hit points, the mind flayer kills the target by extracting and devouring its brain.

Mind Blast (Recharge 5–6) The mind flayer magically emits psychic energy in a 60-foot cone. Each creature in that area must succeed on a DC 15 Intelligence saving throw or take 22 (4d8 + 4) psychic damage and be stunned for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Environment: Underdark

Source: MM, page 222. Also found in WDMM.

Large aberration, lawful evil

Armor Class 15 (natural armor)

Hit Points 75 (10d10 + 20)

Speed 0 ft., fly 20 ft. (hover)

Saving Throws Int +5, Wis +5

Skills Perception +8

Condition Immunities prone

Senses darkvision 120 ft., passive Perception 18

Languages Deep Speech, Undercommon, telepathy 600 ft.

Challenge 5 (1,800 XP)

Proficiency Bonus +3

Telepathic Hub When the mindwitness receives a telepathic message, it can telepathically share that message with up to seven other creatures within 600 feet of it that it can see.

Actions

Multiattack The mindwitness makes two attacks: one with its tentacles and one with its bite.

Bite Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit: 16 (4d6 + 2) piercing damage.

Tentacles Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit: 20 (4d8 + 2) psychic damage. if the target is Large or smaller, it is grappled (escape DC 13) and must succeed on a DC 13 Intelligence saving throw or be stunned until this grapple ends.

Eye Rays The mindwitness shoots three of the following magical eye rays at random (reroll duplicates), choosing one to three targets it can see within 120 feet of it:

1. Aversion Ray The targeted creature must make a DC 13 Charisma saving throw. On a failed save, the target has disadvantage on attack rolls 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.
2. Fear Ray The targeted creature must succeed on a DC 13 Wisdom saving throw or be frightened 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.
3. Psychic Ray The target must succeed on a DC 13 Intelligence saving throw or take 27 (6d8) psychic damage.
4. Slowing Ray The targeted creature must make a DC 13 Dexterity saving throw. On a failed save, the target's speed is halved for 1 minute. In addition, the creature can't take reactions, and it can take either an action or a bonus action on its turn but not both. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
5. Stunning Ray The targeted creature must succeed on a DC 13 Constitution saving throw or be stunned for 1 minute. The target can repeat the saving throw at the start of each of its turns, ending the effect on itself on a success.
6. Telekinetic Ray If the target is a creature, it must make a DC 13 Strength saving throw. On a failed save, the mindwitness moves it up to 30 feet in any direction, and it is restrained by the ray's telekinetic grip until the start of the mindwitness's next turn or until the mindwitness is incapacitated. If the target is an object weighing 300 pounds or less and that object isn't being worn or carried, it is telekinetically moved up to 30 feet in any direction. The mindwitness can also exert fine control on objects with this ray, such as manipulating a simple tool or opening a door or a container.

Environment: Underdark

Source: VGM, page 176

Armor Class 14 (Natural Armor)

Hit Points 105 (10d12 + 40)

Speed 50ft.

Skills Perception +1

Condition Immunities frightened

Senses passive Perception 11

Languages Giant

Challenge 6 (2,300 XP)

Proficiency Bonus +3

Mouth of Madness The giant is immune to confusion spells and similar magic. On each of its turns, the giant uses all its movement to move toward the nearest creature or whatever else it might perceive as food. Roll a d10 at the start of each of the giant's turns to determine its action for that turn:

1–3 The giant makes three attacks with its fists against one random target within its reach. If no other creatures are within its reach, the giant flies into a rage and gains advantage on all attack rolls until the end of its next turn.

4–5 The giant makes one attack with its fist against every creature within its reach. If no other creatures are within its reach, the giant makes one fist attack against itself.

6–7 The giant makes one attack with its bite against one random target within its reach. If no other creatures are within its reach, its eyes glaze over and it becomes stunned until the start of its next turn.

8–10 The giant makes three attacks against one random target within its reach: one attack with its bite and two with its fists. If no other creatures are within its reach, the giant flies into a rage and gains advantage on all attack rolls until the end of its next turn.

Actions

Bite Melee Weapon Attack: +8 to hit, reach 5 ft., one creature. Hit: 15 (3d6 + 5) piercing damage, and the giant magically regains hit points equal to the damage dealt.

Fist Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 18 (3d8 + 5) bludgeoning damage.

Environment: Grassland, Hill

Source: VGM, page 149

Medium construct, unaligned

Armor Class 16 (Natural Armor)

Hit Points 58 (9d8 + 18)

Speed 30ft.

Damage Immunities poison; bludgeoning, piercing, and slashing from nonmagical attacks that aren't adamantine

Condition Immunitie charmed, exhaustion, frightened, paralyzed, petrified, poisoned

Senses darkvision 60 ft., passive Perception 10

Language understands one language of its creator but can't speak

Challenge 5 (1,800 XP)

Proficiency Bonus +3

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

Actions

Multiattack The oaken bolter makes two lancing bolt attacks or one lancing bolt attack and one harpoon attack.

Lancing Bolt Melee or Ranged Weapon Attack: +7 to hit, reach 5 ft. or range 100/400 ft., one target. Hit: 15 (2d10 + 4) piercing damage.

Harpoon Ranged Weapon Attack: +7 to hit, range 50/200 ft., one target. Hit: 9 (1d10 + 4) piercing damage, and the target is grappled (escape DC 12). While grappled in this way, a creature's speed isn't reduced, but it can move only in directions that bring it closer to the oaken bolter. A creature takes 5 (1d10) slashing damage if it escapes from the grapple or if it tries and fails. As a bonus action, the oaken bolter can pull a creature grappled by it 20 feet closer. The oaken bolter can grapple only one creature at a time.

Explosive Bolt (Recharge 5–6) The oaken bolter launches an explosive charge at a point within 120 feet. Each creature within 20 feet of that point must make a DC 15 Dexterity saving throw, taking 17 (5d6) fire damage on a failed save, or half as much damage on a successful one.

Environment: Forest, Grassland, Hill, Mountain

Source: MTF, page 126

Large plant, unaligned

Armor Class 15 (natural armor)

Hit Points 136 (16d10 + 48)

Speed 20 ft., swim 20 ft.

Skills Stealth +2

Damage Resistances cold, fire

Damage Immunities lightning

Condition Immunities blinded, deafened, exhaustion

Senses blindsight 60 ft. (blind beyond this radius), passive Perception 10

Languages Pheromone Based Plant speak

Challenge 5 (1,800 XP)

Proficiency Bonus +3

Lightning Absorption Whenever the shambling mound is subjected to lightning damage, it takes no damage and regains a number of hit points equal to the lightning damage dealt.

Actions

Multiattack The shambling mound makes two slam attacks. If both attacks hit a Medium or smaller target, the target is grappled (escape DC 14), and the shambling mound uses its Engulf on it.

Slam Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) bludgeoning damage.

Engulf The shambling mound engulfs a Medium or smaller creature grappled by it. The engulfed target is blinded, restrained, and unable to breathe, and it must succeed on a DC 14 Constitution saving throw at the start of each of the mound's turns or take 13 (2d8 + 4) bludgeoning damage. If the mound moves, the engulfed target moves with it. The mound can have only one creature engulfed at a time.

Environment: Forest, Swamp

Source: MM, page 270. Also found in CoS; HotDQ; TftYP; ToA; WDMM; GoS; BGDIA; MOT; CM. Available in the SRD.

Large construct, unaligned

Armor Class 17 (Natural Armor)

Hit Points 142 (15d10 + 60)

Speed 31ft.

Damage Immunities poison

Condition Immunities charmed, exhaustion, frightened, paralyzed, poisoned

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

Languages understands commands given in any language but can't speak

Challenge 7 (2,900 XP)

Proficiency Bonus +3

Bound The shield guardian is magically bound to an amulet. As long as the guardian and its amulet are on the same plane of existence, the amulet's wearer can telepathically call the guardian to travel to it, and the guardian knows the distance and direction to the amulet. If the guardian is within 60 feet of the amulet's wearer, half of any damage the wearer takes (rounded up) is transferred to the guardian.

Regeneration The shield guardian regains 10 hit points at the start of its turn if it has at least 1 hit point.

Spell Storing A spellcaster who wears the shield guardian's amulet can cause the guardian to store one spell of 4th level or lower. To do so, the wearer must cast the spell on the guardian. The spell has no effect but is stored within the guardian. When commanded to do so by the wearer or when a situation arises that was predefined by the spellcaster, the guardian casts the stored spell with any parameters set by the original caster, requiring no components. When the spell is cast or a new spell is stored, any previously stored spell is lost.

Actions

Multiattack The guardian makes two fist attacks.

Fist Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage.

Reaction

Shield When a creature makes an attack against the wearer of the guardian's amulet, the guardian grants a +2 bonus to the wearer's AC if the guardian is within 5 feet of the wearer.

Armor Class 16 (natural armor)

Hit Points 52 (7d8 + 21)

Speed 30ft.

Damage Immunities poison; bludgeoning, piercing, and slashing from nonmagical attacks that aren't adamantine.

Condition Immunities charmed, exhaustion, frightened, paralyzed, petrified, poisoned

Senses darkvision 60 ft., passive Perception 10

Languages understands one language of its creator but can't speak

Challenge 4 (1,100 XP)

Proficiency Bonus +2

False Appearance While the stone defender remains motionless against an uneven earthen or stone surface, it is indistinguishable from that surface.

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

Actions

Slam Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage, and if the target is Large or smaller, it is knocked prone.

Reactions

Intercept Attack In response to another creature within 5 feet of it being hit by an attack roll, the stone defender gives that creature a +5 bonus to its AC against that attack, potentially causing a miss. To use this ability, the stone defender must be able to see the creature and the attacker.

Environment: Forest, Grassland, Hill, Mountain

Source: MTF, page 126

Large monstrosity, neutral evil

Armor Class 15 (natural armor)

Hit Points 85 (10d10 + 30)

Speed 40ft.

Skills Perception +4, Stealth +4, Survival +4

Senses darkvision 60 ft., passive Perception 14

Languages Tlincalli

Challenge 5 (1,800 XP)

Proficiency Bonus +3

Actions

Multiattack The tlincalli makes two attacks: one with its longsword or spiked chain, and one with its sting.

Longsword Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) slashing damage, or 8 (1d10 + 3) slashing damage if used with two hands.

Spiked Chain Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 6 (1d6 + 3) piercing damage, and the target is grappled (escape DC 11) if it is a Large or smaller creature. Until this grapple ends, the target is restrained, and the tlincalli can't use the spiked chain against another target.

Sting Melee Weapon Attack: +6 to hit, reach 5 ft., one creature. Hit: 6 (1d6 + 3) piercing damage plus 14 (4d6) poison damage, and the target must succeed on a DC 14 Constitution saving throw or be poisoned for 1 minute. If it fails the saving throw by 5 or more, the target is also paralyzed while poisoned. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Environment: Desert

Source: VGM, page 193

Large giant, chaotic evil

Armor Class 15 (natural armor)

Hit Points 84 (8d10 + 40)

Speed 30ft.

Skills Perception +2

Senses darkvision 60 ft., passive Perception 12

Languages Giant

Challenge 5 (1,800 XP)

Proficiency Bonus +3

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

Regeneration The troll regains 10 hit points at the start of its turn. If the troll takes acid or fire damage, this trait doesn't function at the start of the troll's next turn. The troll dies only if it starts its turn with 0 hit points and doesn't regenerate.

Appearance The Mountain Troll is a deeper green than its lowland cousins, it has more warts, and is slightly bulkier

Actions

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

Bite Melee Weapon Attack:** +7 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) piercing damage.

Claw Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) slashing damage.

Environment: Arctic, Forest, Hill, Mountain, Swamp, Underdark

Source: MM, page 291. Also found in HotDQ; PotA; RoT; SKT; TftYP; ToA; WDH; WDMM; GoS; SLW; EGW. Available in the SRD.

Large monstrosity, chaotic evil

Armor Class 18 (natural armor)

Hit Points 93 (11d10 + 33)

Speed 30 ft., burrow 20 ft.

Senses darkvision 120 ft., tremorsense 60 ft., passive Perception 10

Languages Umber Hulk

Challenge 5 (1,800 XP)

Proficiency Bonus* +3

Confusing Gaze When a creature starts its turn within 30 feet of the umber hulk and is able to see the umber hulk's eyes, the umber hulk can magically force it to make a DC 15 Charisma saving throw, unless the umber hulk is incapacitated.

• On a failed saving throw, the creature can't take reactions until the start of its next turn and rolls a d8 to determine what it does during that turn.
• On a 1 to 4, the creature does nothing. On a 5 or 6, the creature takes no action but uses all its movement to move in a random direction.
• On a 7 or 8, the creature makes one melee attack against a random creature, or it does nothing if no creature is within reach.

Unless surprised, a creature can avert its eyes to avoid the saving throw at the start of its turn. If the creature does so, it can't see the umber hulk until the start of its next turn, when it can avert its eyes again. If the creature looks at the umber hulk in the meantime, it must immediately make the save.

Tunneler The umber hulk can burrow through solid rock at half its burrowing speed and leaves a 5 foot-wide, 8-foot-high tunnel in its wake.

Actions

Multiattack The umber hulk makes three attacks: two with its claws and one with its mandibles.

Claw Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 9 (1d8 + 5) slashing damage.

Mandibles Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 14 (2d8 + 5) slashing damage.

Environment: Underdark

Source: MM, page 292. Also found in PotA; WDMM; IMR; IDRotF.

Chill Touch

Cantrip, Necromancy

Eldritch Blast

Cantrip, Evocation

Green-Flame Blade

Mage Hand

Grease

Ice Knife

Shield

Mirror Image

Misty Step

Scorching Ray

Tidal Wave

Evard's Black Tentacles

Hallucinatory Terrain

Far Step

Infernal Calling

Steel Wind Strike

Drawmij's Instant Summons

Clone

True Resurrection