Medium beast, unaligned

Armor Class 11
Hit Points 5 (1d8 + 1)
Speed 50 ft.

STR	DEX	CON	INT	WIS	CHA
11 (+0)	13 (+1)	12 (+1)	2 (-4)	12 (+1)	5 (-3)

Saving Throws
Skills Perception +3
Damage Resistances
Damage Immunities
Condition Immunities
Senses passive Perception 13
Languages --
Challenge 0 (10 XP)

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

Actions

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

Huge beast, unaligned

Armor Class 12 (natural armor)
Hit Points 90 (12d12 + 12)
Speed 0 ft., swim 60 ft.

STR	DEX	CON	INT	WIS	CHA
19 (+4)	10 (+0)	13 (+1)	3 (-4)	12 (+1)	7 (-2)

Saving Throws
Skills Perception +3
Damage Resistances
Damage Immunities
Condition Immunities
Senses blindsight 120 ft., passive Perception 13
Languages --
Challenge 3 (700 XP)

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

Hold Breath. The whale can hold its breath for 30 minutes.

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

Actions

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 21 (5d6 + 4) piercing damage.

Small beast, unaligned

Armor Class 12
Hit Points 3 (1d6)
Speed 40 ft.

STR	DEX	CON	INT	WIS	CHA
8 (-1)	15 (+2)	11 (+0)	3 (-4)	12 (+1)	6 (-2)

Saving Throws
Skills Perception +3
Damage Resistances
Damage Immunities
Condition Immunities
Senses passive Perception 13
Languages --
Challenge 0 (10 XP)

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

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

Actions

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

Tiny beast, unaligned

Armor Class 10
Hit Points 2 (1d4)
Speed 20 ft., climb 20 ft.

STR	DEX	CON	INT	WIS	CHA
2 (-4)	11 (+0)	10 (+0)	1 (-5)	8 (-1)	3 (-4)

Saving Throws
Skills
Damage Resistances
Damage Immunities
Condition Immunities
Senses darkvision 30 ft., passive Perception 9
Languages --
Challenge 0 (10 XP)

Actions

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

Large beast, unaligned

Armor Class 12
Hit Points 26 (4d10 + 4)
Speed 50 ft.

STR	DEX	CON	INT	WIS	CHA
17 (+3)	15 (+2)	13 (+1)	3 (-4)	12 (+1)	8 (-1)

Saving Throws
Skills Perception +3, Stealth +6
Damage Resistances
Damage Immunities
Condition Immunities
Senses passive Perception 13
Languages --
Challenge 1 (200 XP)

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

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

Pounce. If the lion 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 13 Strength saving throw or be knocked prone. If the target is prone, the lion can make one bite attack against it as a bonus action.

Running Leap. With a 10-foot running start, the lion can long jump up to 25 feet.

Actions

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) piercing damage.

Claw. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) slashing damage.

Huge beast, unaligned

Armor Class 13 (natural armor)
Hit Points 126 (11d12 + 55)
Speed 40 ft.

STR	DEX	CON	INT	WIS	CHA
24 (+7)	9 (-1)	21 (+5)	3 (-4)	11 (+0)	6 (-2)

Saving Throws 
Skills 
Damage Resistances 
Damage Immunities 
Condition Immunities 
Senses passive Perception 10
Languages --
Challenge 6 (2300 XP)

Trampling Charge. If the mammoth 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 18 Strength saving throw or be knocked prone. If the target is prone, the mammoth can make one stomp attack against it as a bonus action.

Actions

Gore. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 25 (4d8 + 7) piercing damage.

Stomp. Melee Weapon Attack: +10 to hit, reach 5 ft., one prone creature. Hit: 29 (4d10 + 7) bludgeoning damage. A mammoth is an elephantine creature with thick fur and long tusks. Stockier and fiercer than normal elephants, mammoths inhabit a wide range of climes, from subarctic to subtropical.

Medium beast, unaligned

Armor Class 12
Hit Points 5 (1d8 + 1)
Speed 40 ft.

STR	DEX	CON	INT	WIS	CHA
13 (+1)	14 (+2)	12 (+1)	3 (-4)	12 (+1)	7 (-2)

Saving Throws
Skills Perception +3
Damage Resistances
Damage Immunities
Condition Immunities
Senses passive Perception 13
Languages --
Challenge 44934 (25 XP)

Keen Hearing and Smell. The mastiff 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. If the target is a creature, it must succeed on a DC 11 Strength saving throw or be knocked prone. Mastiffs are impressive hounds prized by humanoids for their loyalty and keen senses. Mastiffs can be trained as guard dogs, hunting dogs, and war dogs. Halflings and other Small humanoids ride them as mounts.

Medium beast, unaligned

Armor Class 10
Hit Points 11 (2d8 + 2)
Speed 40 ft.

STR	DEX	CON	INT	WIS	CHA
14 (+2)	10 (+0)	13 (+1)	2 (-4)	10 (+0)	5 (-3)

Saving Throws
Skills
Damage Resistances
Damage Immunities
Condition Immunities
Senses passive Perception 10
Languages --
Challenge 44934 (25 XP)

Beast of Burden. The mule is considered to be a Large animal for the purpose of determining its carrying capacity.

Sure-Footed. The mule has advantage on Strength and Dexterity saving throws made against effects that would knock it prone.

Actions

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

Small beast, unaligned

Armor Class 12
Hit Points 3 (1d6)
Speed 5 ft., swim 30 ft.

STR	DEX	CON	INT	WIS	CHA
4 (-3)	15 (+2)	11 (+0)	3 (-4)	10 (+0)	4 (-3)

Saving Throws
Skills Perception +2, Stealth +4
Damage Resistances
Damage Immunities
Condition Immunities
Senses darkvision 30 ft., passive Perception 12
Languages --
Challenge 0 (10 XP)

Hold Breath. While out of water, the octopus can hold its breath for 30 minutes.

Underwater Camouflage. The octopus has advantage on Dexterity (Stealth) checks made while underwater.

Water Breathing. The octopus can breathe only underwater.

Actions

Tentacles. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 1 bludgeoning damage, and the target is grappled (escape DC 10). Until this grapple ends, the octopus can’t use its tentacles on another target.

Ink Cloud (Recharges after a Short or Long Rest). A 5- foot-radius cloud of ink extends all around the octopus if it is underwater. The area is heavily obscured for 1 minute, although a significant current can disperse the ink. After releasing the ink, the octopus can use the Dash action as a bonus action.

Tiny beast, unaligned

Armor Class 11
Hit Points 1 (1d4 - 1)
Speed 5 ft., fly 60 ft.

STR	DEX	CON	INT	WIS	CHA
3 (-4)	13 (+1)	8 (-1)	2 (-4)	12 (+1)	7 (-2)

Saving Throws
Skills Perception +3, Stealth +3
Damage Resistances
Damage Immunities
Condition Immunities
Senses darkvision 120 ft., passive Perception 13
Languages --
Challenge 0 (10 XP)

Flyby. The owl doesn’t provoke opportunity attacks when it flies out of an enemy’s reach.

Keen Hearing and Sight. The owl has advantage on Wisdom (Perception) checks that rely on hearing or sight.

Actions

Talons. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 1 slashing damage.