Large monstrosity, neutral evil

Armor Class 13 (natural armor)
Hit Points 75 (10d10 + 20)
Speed 50 ft.

STR	DEX	CON	INT	WIS	CHA
18 (+4)	13 (+1)	14 (+2)	7 (-2)	12 (+1)	8 (-1)

Saving Throws
Skills Perception +5, Stealth +3
Damage Resistances
Damage Immunities cold
Condition Immunities
Senses passive Perception 15
Languages Common, Giant, Winter Wolf
Challenge 3 (700 XP)

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

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

Snow Camouflage. The wolf has advantage on Dexterity (Stealth) checks made to hide in snowy terrain.

Actions

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) piercing damage. If the target is a creature, it must succeed on a DC 14 Strength saving throw or be knocked prone.

Cold Breath (Recharge 5–6). The wolf exhales a blast of freezing wind in a 15-foot cone. Each creature in that area must make a DC 12 Dexterity saving throw, taking 18 (4d8) cold damage on a failed save, or half as much damage on a successful one. The arctic-dwelling winter wolf is as large as a dire wolf but has snow-white fur and pale blue eyes. Frost giants use these evil creatures as guards and hunting companions, putting the wolves’ deadly breath weapon to use against their foes. Winter wolves communicate with one another using growls and barks, but they speak Common and Giant well enough to follow simple conversations.

Large monstrosity, neutral evil

Armor Class 13 (natural armor)
Hit Points 26 (4d10 + 4)
Speed 50 ft.

STR	DEX	CON	INT	WIS	CHA
16 (+3)	13 (+1)	13 (+1)	7 (-2)	11 (+0)	8 (-1)

Saving Throws 
Skills Perception +4
Damage Resistances 
Damage Immunities 
Condition Immunities 
Senses darkvision 60 ft., passive Perception 14
Languages Goblin, Worg
Challenge 44928 (100 XP)

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

Actions

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) piercing damage. If the target is a creature, it must succeed on a DC 13 Strength saving throw or be knocked prone. A worg is an evil predator that delights in hunting and devouring creatures weaker than itself. Cunning and malevolent, worgs roam across the remote wilderness or are raised by goblins and hobgoblins. Those creatures use worgs as mounts, but a worg will turn on its rider if it feels mistreated or malnourished. Worgs speak in their own language and Goblin, and a few learn to speak Common as well.

Large monstrosity, lawful neutral

Armor Class 17 (natural armor)
Hit Points 199 (19d10 + 95)
Speed 40 ft., fly 60 ft.

STR	DEX	CON	INT	WIS	CHA
22 (+6)	10 (+0)	20 (+5)	16 (+3)	18 (+4)	23 (+6)

Saving Throws Dex +6, Con +11, Int +9, Wis +10
Skills Arcana +9, Perception +10, Religion +15
Damage Resistances 
Damage Immunities psychic; bludgeoning, piercing, and slashing from nonmagical attacks
Condition Immunities charmed, frightened
Senses truesight 120 ft., passive Perception 20
Languages Common, Sphinx
Challenge 17 (18000 XP)

Inscrutable. The sphinx is immune to any effect that would sense its emotions or read its thoughts, as well as any divination spell that it refuses. Wisdom (Insight) checks made to ascertain the sphinx’s intentions or sincerity have disadvantage.

Magic Weapons. The sphinx’s weapon attacks are magical.

Spellcasting. The sphinx is a 12th-level spellcaster. Its spellcasting ability is Wisdom (spell save DC 18, +10 to hit with spell attacks). It requires no material components to cast its spells. The sphinx has the following cleric spells prepared: Cantrips (at will): ““, ““, ““ 1st level (4 slots): ““, ““, ““ 2nd level (3 slots): ““, ““ 3rd level (3 slots): ““, ““ 4th level (3 slots): ““, ““ 5th level (2 slots): ““, ““ 6th level (1 slot): ““

Actions

Multiattack. The sphinx makes two claw attacks.

Claw. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 17 (2d10 + 6) slashing damage.

Roar (3/Day). The sphinx emits a magical roar. Each time it roars before finishing a long rest, the roar is louder and the effect is different, as detailed below. Each creature within 500 feet of the sphinx and able to hear the roar must make a saving throw.

First Roar. Each creature that fails a DC 18 Wisdom saving throw is frightened for 1 minute. A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Second Roar. Each creature that fails a DC 18 Wisdom saving throw is deafened and frightened for 1 minute. A frightened creature is paralyzed and can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Third Roar. Each creature makes a DC 18 Constitution saving throw. On a failed save, a creature takes 44 (8d10) thunder damage and is knocked prone. On a successful save, the creature takes half as much damage and isn’t knocked prone.

Legendary Actions

The sphinx can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The sphinx regains spent legendary actions at the start of its turn.

Claw Attack. The sphinx makes one claw attack.

Teleport (Costs 2 Actions). The sphinx magically teleports, along with any equipment it is wearing or carrying, up to 120 feet to an unoccupied space it can see.

Cast a Spell (Costs 3 Actions). The sphinx casts a spell from its list of prepared spells, using a spell slot as normal.

Large monstrosity, lawful neutral

Armor Class 17 (natural armor)
Hit Points 136 (16d10 + 48)
Speed 40 ft., fly 60 ft.

STR	DEX	CON	INT	WIS	CHA
18 (+4)	15 (+2)	16 (+3)	18 (+4)	18 (+4)	18 (+4)

Saving Throws 
Skills Arcana +12, History +12, Perception +8, Religion +8
Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities psychic
Condition Immunities charmed, frightened
Senses truesight 120 ft., passive Perception 18
Languages Common, Sphinx
Challenge 11 (7200 XP)

Inscrutable. The sphinx is immune to any effect that would sense its emotions or read its thoughts, as well as any divination spell that it refuses. Wisdom (Insight) checks made to ascertain the sphinx’s intentions or sincerity have disadvantage.

Magic Weapons. The sphinx’s weapon attacks are magical.

Spellcasting. The sphinx is a 9th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 16, +8 to hit with spell attacks). It requires no material components to cast its spells. The sphinx 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): ““, ““ 5th level (1 slot): ““

Actions

Multiattack. The sphinx makes two claw attacks.

Claw. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) slashing damage.

Legendary Actions

The sphinx can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The sphinx regains spent legendary actions at the start of its turn.

Claw Attack. The sphinx makes one claw attack.

Teleport (Costs 2 Actions). The sphinx magically teleports, along with any equipment it is wearing or carrying, up to 120 feet to an unoccupied space it can see.

Cast a Spell (Costs 3 Actions). The sphinx casts a spell from its list of prepared spells, using a spell slot as normal.

Large monstrosity, chaotic evil

Armor Class 15 (natural armor)
Hit Points 75 (10d10 + 20)
Speed 40 ft.

STR	DEX	CON	INT	WIS	CHA
18 (+4)	17 (+3)	14 (+2)	16 (+3)	15 (+2)	16 (+3)

Saving Throws Dex +6, Con +5, Wis +5, Cha +6
Skills 
Damage Resistances 
Damage Immunities poison
Condition Immunities charmed, poisoned
Senses darkvision 60 ft., passive Perception 12
Languages Abyssal, Common
Challenge 8 (3900 XP)

Rejuvenation. If it dies, the naga returns to life in 1d6 days and regains all its hit points. Only a ““ spell can prevent this trait from functioning.

Spellcasting. The naga is a 10th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 14, +6 to hit with spell attacks), and it needs only verbal components to cast its spells. It 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): ““, ““ 5th level (2 slots): ““

Actions

Bite. Melee Weapon Attack: +7 to hit, reach 10 ft., one creature. Hit: 7 (1d6 + 4) piercing damage, and the target must make a DC 13 Constitution saving throw, taking 31 (7d8) poison damage on a failed save, or half as much damage on a successful one.

Large monstrosity, lawful good

Armor Class 18 (natural armor)
Hit Points 127 (15d10 + 45)
Speed 40 ft.

STR	DEX	CON	INT	WIS	CHA
19 (+4)	18 (+4)	16 (+3)	16 (+3)	19 (+4)	18 (+4)

Saving Throws Dex +8, Con +7, Int +7, Wis +8, Cha +8
Skills 
Damage Resistances 
Damage Immunities poison
Condition Immunities charmed, poisoned
Senses darkvision 60 ft., passive Perception 14
Languages Celestial, Common
Challenge 10 (5900 XP)

Rejuvenation. If it dies, the naga returns to life in 1d6 days and regains all its hit points. Only a ““ spell can prevent this trait from functioning.

Spellcasting. The naga is an 11th-level spellcaster. Its spellcasting ability is Wisdom (spell save DC 16, +8 to hit with spell attacks), and it needs only verbal components to cast its spells. It has the following cleric spells prepared: Cantrips (at will): ““, ““, ““ 1st level (4 slots): ““, ““, ““ 2nd level (3 slots) : ““, ““ 3rd level (3 slots): ““, ““ 4th level (3 slots): ““, ““ 5th level (2 slots): ““, ““ 6th level (1 slot): ““

Actions

Bite. Melee Weapon Attack: +8 to hit, reach 10 ft., one creature. Hit: 8 (1d8 + 4) piercing damage, and the target must make a DC 15 Constitution saving throw, taking 45 (10d8) poison damage on a failed save, or half as much damage on a successful one.

Spit Poison. Ranged Weapon Attack: +8 to hit, range 15/30 ft., one creature. Hit: The target must make a DC 15 Constitution saving throw, taking 45 (10d8) poison damage on a failed save, or half as much damage on a successful one.