Tiny beast, unaligned

Armor Class 12
Hit Points 1 (1d4 - 1)
Speed 5 ft., fly 30 ft.

STR	DEX	CON	INT	WIS	CHA
2 (-4)	15 (+2)	8 (-1)	2 (-4)	12 (+1)	4 (-3)

Saving Throws
Skills
Damage Resistances
Damage Immunities
Condition Immunities
Senses blindsight 60 ft., passive Perception 11
Languages --
Challenge 0 (10 XP)

Echolocation. The bat can’t use its blindsight while deafened.

Keen Hearing. The bat has advantage on Wisdom (Perception) checks that rely on hearing.

Actions

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

Huge monstrosity, neutral evil

Armor Class 17 (natural armor)
Hit Points 168 (16d12 + 64)
Speed 50 ft., climb 40 ft.

STR	DEX	CON	INT	WIS	CHA
23 (+6)	16 (+3)	18 (+4)	7 (-2)	14 (+2)	12 (+1)

Saving Throws 
Skills Perception +6, Stealth +7
Damage Resistances 
Damage Immunities lightning
Condition Immunities 
Senses darkvision 90 ft., passive Perception 16
Languages Draconic
Challenge 11 (7200 XP)

Actions

Multiattack. The behir makes two attacks: one with its bite and one to constrict.

Bite. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 22 (3d10 + 6) piercing damage.

Constrict. Melee Weapon Attack: +10 to hit, reach 5 ft., one Large or smaller creature. Hit: 17 (2d10 + 6) bludgeoning damage plus 17 (2d10 + 6) slashing damage. The target is grappled (escape DC 16) if the behir isn’t already constricting a creature, and the target is restrained until this grapple ends.

Lightning Breath (Recharge 5–6). The behir exhales a line of lightning that is 20 feet long and 5 feet wide. Each creature in that line must make a DC 16 Dexterity saving throw, taking 66 (12d10) lightning damage on a failed save, or half as much damage on a successful one.

Swallow. The behir makes one bite attack against a Medium or smaller target it is grappling. If the attack hits, the target is also swallowed, and the grapple ends. While swallowed, the target is blinded and restrained, it has total cover against attacks and other effects outside the behir, and it takes 21 (6d6) acid damage at the start of each of the behir’s turns. A behir can have only one creature swallowed at a time. If the behir takes 30 damage or more on a single turn from the swallowed creature, the behir must succeed on a DC 14 Constitution saving throw at the end of that turn or regurgitate the creature, which falls prone in a space within 10 feet of the behir. If the behir dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 15 feet of movement, exiting prone.

Medium humanoid (any race), any chaotic alignment

Armor Class 13 (hide armor)
Hit Points 67 (9d8 + 27)
Speed 30 ft.

STR	DEX	CON	INT	WIS	CHA
16 (+3)	12 (+1)	17 (+3)	9 (-1)	11 (+0)	9 (-1)

Saving Throws
Skills
Damage Resistances
Damage Immunities
Condition Immunities
Senses passive Perception 10
Languages any one language (usually Common)
Challenge 2 (450 XP)

Reckless. At the start of its turn, the berserker can gain advantage on all melee weapon attack rolls during that turn, but attack rolls against it have advantage until the start of its next turn.

Actions

Greataxe. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 9 (1d12 + 3) slashing damage. Hailing from uncivilized lands, unpredictable berserkers come together in war parties and seek conflict wherever they can find it.

Medium fey, lawful good

Armor Class 13
Hit Points 22 (4d8 + 4)
Speed 40 ft.

STR	DEX	CON	INT	WIS	CHA
12 (+1)	17 (+3)	12 (+1)	10 (+0)	13 (+1)	11 (+0)

Saving Throws 
Skills Perception +3, Stealth +5
Damage Resistances 
Damage Immunities 
Condition Immunities 
Senses passive Perception 13
Languages Blink Dog, understands Sylvan but can't speak it
Challenge 44930 (50 XP)

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

Actions

Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) piercing damage.

Teleport (Recharge 4–6). The dog magically teleports, along with any equipment it is wearing or carrying, up to 40 feet to an unoccupied space it can see. Before or after teleporting, the dog can make one bite attack. A blink dog takes its name from its ability to blink in and out of existence, a talent it uses to aid its attacks and to avoid harm. Blink dogs harbor a long- standing hatred for displacer beasts and attack them on sight.

Large beast, unaligned

Armor Class 11
Hit Points 19 (3d10 + 3)
Speed 50 ft.

STR	DEX	CON	INT	WIS	CHA
14 (+2)	12 (+1)	12 (+1)	2 (-4)	10 (+0)	5 (-3)

Saving Throws 
Skills 
Damage Resistances 
Damage Immunities 
Condition Immunities 
Senses passive Perception 10
Languages --
Challenge 44930 (50 XP)

Actions

Beak. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 (1d8 + 2) slashing damage. An axe beak is a tall flightless bird with strong legs and a heavy, wedge-shaped beak. It has a nasty disposition and tends to attack any unfamiliar creature that wanders too close.

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

Armor Class 15 (studded leather)
Hit Points 78 (12d8 + 24)
Speed 30 ft.

STR	DEX	CON	INT	WIS	CHA
11 (+0)	16 (+3)	14 (+2)	13 (+1)	11 (+0)	10 (+0)

Saving Throws Dex +6, Int +4
Skills Acrobatics +6, Deception +3, Perception +3, Stealth +9
Damage Resistances poison
Damage Immunities 
Condition Immunities 
Senses passive Perception 13
Languages Thieves' cant plus any two languages
Challenge 8 (3900 XP)

Assassinate. During its first turn, the assassin has advantage on attack rolls against any creature that hasn’t taken a turn. Any hit the assassin scores against a surprised creature is a critical hit.

Evasion. If the assassin is subjected to an effect that allows it to make a Dexterity saving throw to take only half damage, the assassin instead takes no damage if it succeeds on the saving throw, and only half damage if it fails.

Sneak Attack. Once per turn, the assassin deals an extra 14 (4d6) damage when it hits a target with a weapon attack and has advantage on the attack roll, or when the target is within 5 feet of an ally of the assassin that isn’t incapacitated and the assassin doesn’t have disadvantage on the attack roll.

Actions

Multiattack. The assassin makes two shortsword attacks.

Shortsword. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) piercing damage, and the target must make a DC 15 Constitution saving throw, taking 24 (7d6) poison damage on a failed save, or half as much damage on a successful one.

Light Crossbow. Ranged Weapon Attack: +6 to hit, range 80/320 ft., one target. Hit: 7 (1d8 + 3) piercing damage, and the target must make a DC 15 Constitution saving throw, taking 24 (7d6) poison damage on a failed save, or half as much damage on a successful one. Trained in the use of poison, assassins are remorseless killers who work for nobles, guildmasters, sovereigns, and anyone else who can afford them.

Medium humanoid (any race), any alignment

Armor Class 12 (15 with mage armor)
Hit Points 99 (18d8 + 18)
Speed 30 ft.

STR	DEX	CON	INT	WIS	CHA
10 (+0)	14 (+2)	12 (+1)	20 (+5)	15 (+2)	16 (+3)

Saving Throws Int +9, Wis +6
Skills Arcana +13, History +13
Damage Resistances 
Damage Immunities 
Condition Immunities 
Senses passive Perception 12
Languages any six languages
Challenge 12 (8400 XP)

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

Spellcasting. The archmage is an 18th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 17, +9 to hit with spell attacks). The archmage can cast ““ and ““ at will and has the following wizard spells prepared: Cantrips (at will): ““, ““, ““, ““, ““ 1st level (4 slots): ““, ““, ““ 2nd level (3 slots): ““, ““, ““ 3rd level (3 slots): ““, ““, ““ 4th level (3 slots): ““, ““, ““, ““, ““ 6th level (1 slot): ““ 7th level (1 slot): ““ 8th level (1 slot): ““ *The archmage casts these spells on itself before combat.

Actions

Dagger. Melee or Ranged Weapon Attack: +6 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 4 (1d4 + 2) piercing damage. Archmages are powerful (and usually quite old) spellcasters dedicated to the study of the arcane arts. Benevolent ones counsel kings and queens, while evil ones rule as tyrants and pursue lichdom. Those who are neither good nor evil sequester themselves in remote towers to practice their magic without interruption. An archmage typically has one or more apprentice mages, and an archmage’s abode has numerous magical wards and guardians to discourage interlopers.

Large beast, unaligned

Armor Class 13
Hit Points 22 (4d10)
Speed 10 ft., fly 60 ft.

STR	DEX	CON	INT	WIS	CHA
15 (+2)	16 (+3)	11 (+0)	2 (-4)	12 (+1)	6 (-2)

Saving Throws
Skills
Damage Resistances
Damage Immunities
Condition Immunities
Senses blindsight 60 ft., passive Perception 11
Languages --
Challenge 44930 (50 XP)

Echolocation. The bat can’t use its blindsight while deafened.

Keen Hearing. The bat has advantage on Wisdom (Perception) checks that rely on hearing.

Actions

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

Large beast, unaligned

Armor Class 12 (natural armor)
Hit Points 42 (5d10 + 15)
Speed 40 ft.

STR	DEX	CON	INT	WIS	CHA
17 (+3)	10 (+0)	16 (+3)	2 (-4)	7 (-2)	5 (-3)

Saving Throws
Skills
Damage Resistances
Damage Immunities
Condition Immunities
Senses passive Perception 8
Languages --
Challenge 2 (450 XP)

Charge. If the boar moves at least 20 feet straight toward a target and then hits it with a tusk attack 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 boar takes 10 damage or less that would reduce it to 0 hit points, it is reduced to 1 hit point instead.

Actions

Tusk. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) slashing damage.

Small beast, unaligned

Armor Class 13 (natural armor)
Hit Points 4 (1d6 + 1)
Speed 30 ft., climb 30 ft.

STR	DEX	CON	INT	WIS	CHA
5 (-3)	14 (+2)	12 (+1)	1 (-5)	7 (-2)	3 (-4)

Saving Throws
Skills
Damage Resistances
Damage Immunities
Condition Immunities
Senses blindsight 30 ft., passive Perception 8
Languages --
Challenge 44930 (50 XP)

Actions

Bite. 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 take 10 (3d6) poison damage. 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.