Weretiger

Medium humanoid (human, shapechanger), neutral

Armor Class 12
Hit Points 120 (16d8 + 48)
Speed 30 ft. (40 ft. in tiger form)

STR	DEX	CON	INT	WIS	CHA
17 (+3)	15 (+2)	16 (+3)	10 (+0)	13 (+1)	11 (+0)

Skills Perception +5, Stealth +4
Damage Immunities bludgeoning, piercing, and slashing from nonmagical attacks not made with silvered weapons
Senses darkvision 60 ft., passive Perception 15
Languages Common (can’t speak in tiger form)
Challenge 4 (1,100 XP)

Shapechanger. The weretiger can use its action to polymorph into a tiger-humanoid hybrid or into a tiger, or back into its true form, which is humanoid. Its statistics, other than its size, 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.
Keen Hearing and Smell. The weretiger has advantage on Wisdom (Perception) checks that rely on hearing or smell.
Pounce (Tiger or Hybrid Form Only). If the weretiger moves at least 15 feet straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a DC 14 Strength saving throw or be knocked prone. If the target is prone, the weretiger can make one bite attack against it as a bonus action.

Actions

Multiattack (Humanoid or Hybrid Form Only). In humanoid form, the weretiger makes two scimitar attacks or two longbow attacks. In hybrid form, it can attack like a humanoid or make two claw attacks.
Bite (Tiger or Hybrid Form Only). Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (1d10 + 3) piercing damage. If the target is a humanoid, it must succeed on a DC 13 Constitution saving throw or be cursed with weretiger lycanthropy.
Claw (Tiger or Hybrid Form Only). Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) slashing damage.
Scimitar (Humanoid or Hybrid Form Only). Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) slashing damage. Longbow (Humanoid or Hybrid Form Only). Ranged Weapon Attack: +4 to hit, range 150/600 ft., one target. Hit: 6 (1d8 + 2) piercing damage.

Wereboar

Medium humanoid (human, shapechanger), neutral evil

Armor Class 10 in humanoid form, 11 (natural armor) in boar or hybrid form
Hit Points 78 (12d8 + 24)
Speed 30 ft. (40 ft. in boar form)

STR	DEX	CON	INT	WIS	CHA
17 (+3)	10 (+0)	15 (+2)	10 (+0)	11 (+0)	8 (−1)

Skills Perception +2
Damage Immunities bludgeoning, piercing, and slashing from nonmagical attacks not made with silvered weapons
Senses passive Perception 12
Languages Common (can’t speak in boar form)
Challenge 4 (1,100 XP)

Shapechanger. The wereboar can use its action to polymorph into a boar-humanoid hybrid or into a boar, or back into its true form, which is humanoid. Its statistics, other than its AC, 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.
Charge (Boar or Hybrid Form Only). If the wereboar moves at least 15 feet straight toward a target and then hits it with its tusks on the same turn, the target takes an extra 7 (2d6) slashing damage. If the target is a creature, it must succeed on a DC 13 Strength saving throw or be knocked prone.
Relentless (Recharges after a Short or Long Rest). If the wereboar takes 14 damage or less that would reduce it to 0 hit points, it is reduced to 1 hit point instead.

Actions

Multiattack (Humanoid or Hybrid Form Only). The wereboar makes two attacks, only one of which can be with its tusks.
Maul (Humanoid or Hybrid Form Only). Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) bludgeoning damage.
Tusks (Boar or Hybrid Form Only). Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) slashing damage. If the target is a humanoid, it must succeed on a DC 12 Constitution saving throw or be cursed with wereboar lycanthropy.

Succubus/Incubus

Medium fiend (shapechanger), neutral evil

Armor Class 15 (natural armor)
Hit Points 66 (12d8 + 12)
Speed 30 ft., fly 60 ft.

STR	DEX	CON	INT	WIS	CHA
8 (−1)	17 (+3)	13 (+1)	15 (+2)	12 (+1)	20 (+5)

Skills Deception +9, Insight +5, Perception +5, Persuasion +9, Stealth +7
Damage Resistances cold, fire, lightning, poison; bludgeoning, piercing, and slashing from nonmagical attacks
Senses darkvision 60 ft., passive Perception 15
Languages Abyssal, Common, Infernal, telepathy 60 ft.
Challenge 4 (1,100 XP)

Telepathic Bond. The fiend ignores the range restriction on its telepathy when communicating with a creature it has charmed. The two don’t even need to be on the same plane of existence.
Shapechanger. The fiend can use its action to polymorph into a Small or Medium humanoid, or back into its true form. Without wings, the fiend loses its flying speed. Other than its size and speed, 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.

Actions

Claw (Fiend Form Only). Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) slashing damage.
Charm. One humanoid the fiend can see within 30 feet of it must succeed on a DC 15 Wisdom saving throw or be magically charmed for 1 day. The charmed target obeys the fiend’s verbal or telepathic commands. If the target suffers any harm or receives a suicidal command, it can repeat the saving throw, ending the effect on a success. If the target successfully saves against the effect, or if the effect on it ends, the target is immune to this fiend’s Charm for the next 24 hours.
The fiend can have only one target charmed at a time. If it charms another, the effect on the previous target ends.
Draining Kiss. The fiend kisses a creature charmed by it or a willing creature. The target must make a DC 15 Constitution saving throw against this magic, taking 32 (5d10 + 5) psychic damage on a failed save, or half as much damage on a successful one. The target’s 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.
Etherealness. The fiend magically enters the Ethereal Plane from the Material Plane, or vice versa.

Red Dragon Wyrmling

Medium dragon, chaotic evil

Armor Class 17 (natural armor)
Hit Points 75 (10d8 + 30)
Speed 30 ft., climb 30 ft., fly 60 ft.

STR	DEX	CON	INT	WIS	CHA
19 (+4)	10 (+0)	17 (+3)	12 (+1)	11 (+0)	15 (+2)

Saving Throws Dex +2, Con +5, Wis +2, Cha +4
Skills Perception +4, Stealth +2
Damage Immunities fire
Senses blindsight 10 ft., darkvision 60 ft., passive Perception 14
Languages Draconic
Challenge 4 (1,100 XP)

Actions

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 9 (1d10 + 4) piercing damage plus 3 (1d6) fire damage.
Fire Breath (Recharge 5–6). The dragon exhales fire in a 15-foot cone. Each creature in that area must make a DC 13 Dexterity saving throw, taking 24 (7d6) fire damage on a failed save, or half as much damage on a successful one.

Lamia

Large monstrosity, chaotic evil

Armor Class 13 (natural armor)
Hit Points 97 (13d10 + 26)
Speed 30 ft.

STR	DEX	CON	INT	WIS	CHA
16 (+3)	13 (+1)	15 (+2)	14 (+2)	15 (+2)	16 (+3)

Skills Deception +7, Insight +4, Stealth +3
Senses darkvision 60 ft., passive Perception 12
Languages Abyssal, Common
Challenge 4 (1,100 XP)

Innate Spellcasting. The lamia’s innate spellcasting ability is Charisma (spell save DC 13). It can innately cast the following spells, requiring no material components.
At will: disguise self (any humanoid form), major image
3/day each: charm person, mirror image, scrying, suggestion
1/day: geas*

Actions

Multiattack. The lamia makes two attacks: one with its claws and one with its dagger or Intoxicating Touch.
Claws. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 14 (2d10 + 3) slashing damage. Dagger. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d4 + 3) piercing damage.
Intoxicating Touch. Melee Spell Attack: +5 to hit, reach 5 ft., one creature. Hit: The target is magically cursed for 1 hour. Until the curse ends, the target has disadvantage on Wisdom saving throws and all ability checks.

Ghost

Medium undead, any alignment

Armor Class 11
Hit Points 45 (10d8)
Speed 0 ft., fly 40 ft. (hover)

STR	DEX	CON	INT	WIS	CHA
7 (−2)	13 (+1)	10 (+0)	10 (+0)	12 (+1)	17 (+3)

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)

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.

Ettin

Large giant, chaotic evil

Armor Class 12 (natural armor)
Hit Points 85 (10d10 + 30)
Speed 40 ft.

STR	DEX	CON	INT	WIS	CHA
21 (+5)	8 (−1)	17 (+3)	6 (−2)	10 (+0)	8 (−1)

Skills Perception +4
Senses darkvision 60 ft., passive Perception 14
Languages Giant, Orc
Challenge 4 (1,100 XP)

Two Heads. The ettin has advantage on Wisdom (Perception) checks and on saving throws against being blinded, charmed, deafened, frightened, stunned, and knocked unconscious.
Wakeful. When one of the ettin’s heads is asleep, its other head is awake.

Actions

Multiattack. The ettin makes two attacks: one with its battleaxe and one with its morningstar.
Battleaxe. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 14 (2d8 + 5) slashing damage.
Morningstar. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 14 (2d8 + 5) piercing damage.

Elephant

Huge beast, unaligned

Armor Class 12 (natural armor)
Hit Points 76 (8d12 + 24)
Speed 40 ft.

STR	DEX	CON	INT	WIS	CHA
22 (+6)	9 (−1)	17 (+3)	3 (−4)	11 (+0)	6 (−2)

Senses passive Perception 10
Languages —
Challenge 4 (1,100 XP)

Trampling Charge. If the elephant moves at least 20 feet straight toward a creature and then hits it with a gore 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 elephant can make one stomp attack against it as a bonus action.

Actions

Gore. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 19 (3d8 + 6) piercing damage.
Stomp. Melee Weapon Attack: +8 to hit, reach 5 ft., one prone creature. Hit: 22 (3d10 + 6) bludgeoning damage.

Couatl

Medium celestial, lawful good

Armor Class 19 (natural armor)
Hit Points 97 (13d8 + 39)
Speed 30 ft., fly 90 ft.

STR	DEX	CON	INT	WIS	CHA
16 (+3)	20 (+5)	17 (+3)	18 (+4)	20 (+5)	18 (+4)

Saving Throws Con +5, Wis +7, Cha +6
Damage Resistances radiant
Damage Immunities psychic; bludgeoning, piercing, and slashing from nonmagical attacks
Senses truesight 120 ft., passive Perception 15
Languages all, telepathy 120 ft.
Challenge 4 (1,100 XP)

Innate Spellcasting. The couatl’s spellcasting ability is Charisma (spell save DC 14). It can innately cast the following spells, requiring only verbal components:
At will: detect evil and good, detect magic, detect thoughts
3/day each: bless, create food and water, cure wounds, lesser restoration, protection from poison, sanctuary, shield
1/day each: dream, greater restoration, scrying
Magic Weapons. The couatl’s weapon attacks are magical.
Shielded Mind. The couatl is immune to scrying and to any effect that would sense its emotions, read its thoughts, or detect its location.

Actions

Bite. Melee Weapon Attack: +8 to hit, reach 5 ft., one creature. Hit: 8 (1d6 + 5) piercing damage, and the target must succeed on a DC 13 Constitution saving throw or be poisoned for 24 hours. Until this poison ends, the target is unconscious. Another creature can use an action to shake the target awake.
Constrict. Melee Weapon Attack: +6 to hit, reach 10 ft., one Medium or smaller creature. Hit: 10 (2d6 + 3) bludgeoning damage, and the target is grappled (escape DC 15). Until this grapple ends, the target is restrained, and the couatl can’t constrict another target.
Change Shape. The couatl magically polymorphs into a humanoid or beast that has a challenge rating equal to or less than its own, or back into its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the couatl’s choice).
In a new form, the couatl retains its game statistics and ability to speak, but its AC, movement modes, Strength, Dexterity, and other actions are replaced by those of the new form, and it gains any statistics and capabilities (except class features, legendary actions, and lair actions) that the new form has but that it lacks. If the new form has a bite attack, the couatl can use its bite in that form.

Chuul

Large aberration, chaotic evil

Armor Class 16 (natural armor)
Hit Points 93 (11d10 + 33)
Speed 30 ft., swim 30 ft.

STR	DEX	CON	INT	WIS	CHA
19 (+4)	10 (+0)	16 (+3)	5 (-3)	11 (+0)	5 (-3)

Skills Perception +4
Damage Immunities poison
Condition Immunities poisoned
Senses darkvision 60 ft., passive Perception 14
Languages understands Deep Speech but can’t speak
Challenge 4 (1,100 XP)

Amphibious. The chuul can breathe air and water.
Sense Magic. The chuul senses magic within 120 feet of it at will. This trait otherwise works like the detect magic spell but isn’t itself magical.

Actions

Multiattack. The chuul makes two pincer attacks. If the chuul is grappling a creature, the chuul can also use its tentacles once.
Pincer. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage. The target is grappled (escape DC 14) if it is a Large or smaller creature and the chuul doesn’t have two other creatures grappled.
Tentacles. One creature grappled by the chuul must succeed on a DC 13 Constitution saving throw or be poisoned for 1 minute. Until this poison ends, the target is paralyzed. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.