Medium beast, unaligned

Armor Class 15 (natural armor)
Hit Points 13 (3d8)
Speed 30 ft., swim 30 ft.

STR	DEX	CON	INT	WIS	CHA
13 (+1)	15 (+2)	11 (+0)	1 (-5)	9 (-1)	3 (-4)

Saving Throws
Skills Stealth +4
Damage Resistances
Damage Immunities
Condition Immunities
Senses blindsight 30 ft., passive Perception 9
Languages --
Challenge 44934 (25 XP)

Amphibious. The crab can breathe air and water.

Actions

Claw. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) bludgeoning damage, and the target is grappled (escape DC 11). The crab has two claws, each of which can grapple only one target.

Huge beast, unaligned

Armor Class 14 (natural armor)
Hit Points 85 (9d12 + 27)
Speed 30 ft., swim 50 ft.

STR	DEX	CON	INT	WIS	CHA
21 (+5)	9 (-1)	17 (+3)	2 (-4)	10 (+0)	7 (-2)

Saving Throws
Skills Stealth +5
Damage Resistances
Damage Immunities
Condition Immunities
Senses passive Perception 10
Languages --
Challenge 5 (1800 XP)

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

Actions

Multiattack. The crocodile makes two attacks: one with its bite and one with its tail.

Bite. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 21 (3d10 + 5) piercing damage, and the target is grappled (escape DC 16). Until this grapple ends, the target is restrained, and the crocodile can’t bite another target.

Tail. Melee Weapon Attack: +8 to hit, reach 10 ft., one target not grappled by the crocodile. Hit: 14 (2d8 + 5) bludgeoning damage. If the target is a creature, it must succeed on a DC 16 Strength saving throw or be knocked prone.

Large beast, neutral good

Armor Class 13
Hit Points 26 (4d10 + 4)
Speed 10 ft., fly 80 ft.

STR	DEX	CON	INT	WIS	CHA
16 (+3)	17 (+3)	13 (+1)	8 (-1)	14 (+2)	10 (+0)

Saving Throws
Skills Perception +4
Damage Resistances
Damage Immunities
Condition Immunities
Senses passive Perception 14
Languages Giant Eagle, understands Common and Auran but can't speak them
Challenge 1 (200 XP)

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

Actions

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

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

Talons. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) slashing damage. A giant eagle is a noble creature that speaks its own language and understands speech in the Common tongue. A mated pair of giant eagles typically has up to four eggs or young in their nest (treat the young as normal eagles).

Huge beast, unaligned

Armor Class 12
Hit Points 60 (8d12 + 8)
Speed 30 ft., swim 30 ft.

STR	DEX	CON	INT	WIS	CHA
19 (+4)	14 (+2)	12 (+1)	1 (-5)	10 (+0)	3 (-4)

Saving Throws
Skills Perception +2
Damage Resistances
Damage Immunities
Condition Immunities
Senses blindsight 10 ft., passive Perception 12
Languages --
Challenge 2 (450 XP)

Actions

Bite. Melee Weapon Attack: +6 to hit, reach 10 ft., one creature. Hit: 11 (2d6 + 4) piercing damage.

Constrict. Melee Weapon Attack: +6 to hit, reach 5 ft., one creature. Hit: 13 (2d8 + 4) bludgeoning damage, and the target is grappled (escape DC 16). Until this grapple ends, the creature is restrained, and the snake can’t constrict another target.

Medium beast, unaligned

Armor Class 11
Hit Points 18 (4d8)
Speed 30 ft., swim 30 ft.

STR	DEX	CON	INT	WIS	CHA
12 (+1)	13 (+1)	11 (+0)	2 (-4)	10 (+0)	3 (-4)

Saving Throws
Skills Perception +2, Stealth +3
Damage Resistances
Damage Immunities
Condition Immunities
Senses darkvision 30 ft., passive Perception 12
Languages --
Challenge 44930 (50 XP)

Amphibious. The frog can breathe air and water.

Standing Leap. The frog’s long jump is up to 20 feet and its high jump is up to 10 feet, with or without a running start.

Actions

Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) piercing damage, and the target is grappled (escape DC 11). Until this grapple ends, the target is restrained, and the frog can’t bite another target.

Swallow. The frog makes one bite attack against a Small or smaller target it is grappling. If the attack hits, the target is swallowed, and the grapple ends. The swallowed target is blinded and restrained, it has total cover against attacks and other effects outside the frog, and it takes 5 (2d4) acid damage at the start of each of the frog’s turns. The frog can have only one target swallowed at a time. If the frog dies, a swallowed creature is no longer restrained by it and can escape from the corpse using 5 feet of movement, exiting prone.

Large beast, unaligned

Armor Class 11 (natural armor)
Hit Points 19 (3d10 + 3)
Speed 40 ft.

STR	DEX	CON	INT	WIS	CHA
17 (+3)	11 (+0)	12 (+1)	3 (-4)	12 (+1)	6 (-2)

Saving Throws
Skills
Damage Resistances
Damage Immunities
Condition Immunities
Senses passive Perception 11
Languages --
Challenge 44928 (100 XP)

Charge. If the goat moves at least 20 feet straight toward a target and then hits it with a ram attack on the same turn, the target takes an extra 5 (2d4) bludgeoning damage. If the target is a creature, it must succeed on a DC 13 Strength saving throw or be knocked prone.

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

Actions

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

Small beast, unaligned

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

STR	DEX	CON	INT	WIS	CHA
8 (-1)	10 (+0)	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 0 (10 XP)

Illumination. The beetle sheds bright light in a 10-foot radius and dim light for an additional 10 feet.

Actions

Bite. Melee Weapon Attack: +1 to hit, reach 5 ft., one target. Hit: 2 (1d6 − 1) slashing damage. A giant fire beetle is a nocturnal creature that takes its name from a pair of glowing glands that give off light. Miners and adventurers prize these creatures, for a giant fire beetle’s glands continue to shed light for 1d6 days after the beetle dies. Giant fire beetles are most commonly found underground and in dark forests.

Large beast, unaligned

Armor Class 12
Hit Points 45 (6d10 + 12)
Speed 50 ft.

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

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

Rampage. When the hyena reduces a creature to 0 hit points with a melee attack on its turn, the hyena can take a bonus action to move up to half its speed and make a bite attack.

Actions

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

Huge beast, unaligned

Armor Class 14 (natural armor)
Hit Points 42 (5d12 + 10)
Speed 60 ft.

STR	DEX	CON	INT	WIS	CHA
19 (+4)	16 (+3)	14 (+2)	7 (-2)	14 (+2)	10 (+0)

Saving Throws
Skills Perception +4
Damage Resistances
Damage Immunities
Condition Immunities
Senses passive Perception 14
Languages Giant Elk, understands Common, Elvish, and Sylvan but can't speak them
Challenge 2 (450 XP)

Charge. If the elk moves at least 20 feet straight toward a target and then hits it with a ram attack on the same turn, the target takes an extra 7 (2d6) damage. If the target is a creature, it must succeed on a DC 14 Strength saving throw or be knocked prone.

Actions

Ram. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage.

Hooves. Melee Weapon Attack: +6 to hit, reach 5 ft., one prone creature. Hit: 22 (4d8 + 4) bludgeoning damage. The majestic giant elk is rare to the point that its appearance is often taken as a foreshadowing of an important event, such as the birth of a king. Legends tell of gods that take the form of giant elk when visiting the Material Plane. Many cultures therefore believe that to hunt these creatures is to invite divine wrath.

Large beast, unaligned

Armor Class 11
Hit Points 52 (8d10 + 8)
Speed 10 ft., swim 60 ft.

STR	DEX	CON	INT	WIS	CHA
17 (+3)	13 (+1)	13 (+1)	4 (-3)	10 (+0)	4 (-3)

Saving Throws
Skills Perception +4, Stealth +5
Damage Resistances
Damage Immunities
Condition Immunities
Senses darkvision 60 ft., passive Perception 14
Languages --
Challenge 1 (200 XP)

Hold Breath. While out of water, the octopus can hold its breath for 1 hour.

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: +5 to hit, reach 15 ft., one target. Hit: 10 (2d6 + 3) bludgeoning damage. If the target is a creature, it is grappled (escape DC 16). Until this grapple ends, the target is restrained, and the octopus can’t use its tentacles on another target.

Ink Cloud (Recharges after a Short or Long Rest). A 20- 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.