Huge dragon, lawful evil

Armor Class 19 (natural armor)
Hit Points 225 (18d12 + 108)
Speed 40 ft., burrow 30 ft., fly 80 ft.

STR	DEX	CON	INT	WIS	CHA
25 (+7)	10 (+0)	23 (+6)	16 (+3)	15 (+2)	19 (+4)

Saving Throws Dex +5, Con +11, Wis +7, Cha +9
Skills Perception +12, Stealth +5
Damage Resistances 
Damage Immunities lightning
Condition Immunities 
Senses blindsight 60 ft., darkvision 120 ft., passive Perception 22
Languages Common, Draconic
Challenge 16 (15000 XP)

Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.

Actions

Multiattack. The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 18 (2d10 + 7) piercing damage plus 5 (1d10) lightning damage.

Claw. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 14 (2d6 + 7) slashing damage.

Tail. Melee Weapon Attack: +12 to hit, reach 15 ft., one target. Hit: 16 (2d8 + 7) bludgeoning damage.

Frightful Presence. Each creature of the dragon’s choice that is within 120 feet of the dragon and aware of it must succeed on a DC 17 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to the dragon’s Frightful Presence for the next 24 hours.

Lightning Breath (Recharge 5–6). The dragon exhales lightning in a 90-foot line that is 5 feet wide. Each creature in that line must make a DC 19 Dexterity saving throw, taking 66 (12d10) lightning damage on a failed save, or half as much damage on a successful one.

Legendary Actions The dragon 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 dragon regains spent legendary actions at the start of its turn.

Detect. The dragon makes a Wisdom (Perception) check.

Tail Attack. The dragon makes a tail attack.

Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 10 feet of the dragon must succeed on a DC 20 Dexterity saving throw or take 14 (2d6 + 7) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.

Large dragon, chaotic evil

Armor Class 18 (natural armor)
Hit Points 127 (15d10 + 45)
Speed 40 ft., fly 80 ft., swim 40 ft.

STR	DEX	CON	INT	WIS	CHA
19 (+4)	14 (+2)	17 (+3)	12 (+1)	11 (+0)	15 (+2)

Saving Throws Dex +5, Con +6, Wis +3, Cha +5
Skills Perception +6, Stealth +5
Damage Resistances 
Damage Immunities acid
Condition Immunities 
Senses blindsight 30 ft., darkvision 120 ft., passive Perception 16
Languages Common, Draconic
Challenge 7 (2900 XP)

Amphibious. The dragon can breathe air and water.

Actions

Multiattack. The dragon makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 15 (2d10 + 4) piercing damage plus 4 (1d8) acid damage.

Claw. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) slashing damage.

Acid Breath (Recharge 5–6). The dragon exhales acid in a 30-foot line that is 5 feet wide. Each creature in that line must make a DC 14 Dexterity saving throw, taking 49 (11d8) acid damage on a failed save, or half as much damage on a successful one.

Huge dragon, chaotic evil

Armor Class 19 (natural armor)
Hit Points 195 (17d12 + 85)
Speed 40 ft., fly 80 ft., swim 40 ft.

STR	DEX	CON	INT	WIS	CHA
23 (+6)	14 (+2)	21 (+5)	14 (+2)	13 (+1)	17 (+3)

Saving Throws Dex +7, Con +10, Wis +6, Cha +8
Skills Perception +11, Stealth +7
Damage Resistances 
Damage Immunities acid
Condition Immunities 
Senses blindsight 60 ft., darkvision 120 ft., passive Perception 21
Languages Common, Draconic
Challenge 14 (11500 XP)

Amphibious. The dragon can breathe air and water.

Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.

Actions

Multiattack. The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +11 to hit, reach 10 ft., one target. Hit: 17 (2d10 + 6) piercing damage plus 4 (1d8) acid damage.

Claw. Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 6) slashing damage.

Tail. Melee Weapon Attack: +11 to hit, reach 15 ft., one target. Hit: 15 (2d8 + 6) bludgeoning damage.

Frightful Presence. Each creature of the dragon’s choice that is within 120 feet of the dragon and aware of it must succeed on a DC 16 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to the dragon’s Frightful Presence for the next 24 hours.

Acid Breath (Recharge 5–6). The dragon exhales acid in a 60-foot line that is 5 feet wide. Each creature in that line must make a DC 18 Dexterity saving throw, taking 54 (12d8) acid damage on a failed save, or half as much damage on a successful one.

Legendary Actions

The dragon 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 dragon regains spent legendary actions at the start of its turn.

Detect. The dragon makes a Wisdom (Perception) check.

Tail Attack. The dragon makes a tail attack.

Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 10 feet of the dragon must succeed on a DC 19 Dexterity saving throw or take 13 (2d6 + 6) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.

Gargantuan dragon, chaotic evil

Armor Class 22 (natural armor)
Hit Points 367 (21d20 + 147)
Speed 40 ft., fly 80 ft., swim 40 ft.

STR	DEX	CON	INT	WIS	CHA
27 (+8)	14 (+2)	25 (+7)	16 (+3)	15 (+2)	19 (+4)

Saving Throws Dex +9, Con +14, Wis +9, Cha +11
Skills Perception +16, Stealth +9
Damage Resistances 
Damage Immunities acid
Condition Immunities 
Senses blindsight 60 ft., darkvision 120 ft., passive Perception 26
Languages Common, Draconic
Challenge 21 (33000 XP)

Amphibious. The dragon can breathe air and water.

Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.

Actions

Multiattack. The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +15 to hit, reach 15 ft., one target. Hit: 19 (2d10 + 8) piercing damage plus 9 (2d8) acid damage.

Claw. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 15 (2d6 + 8) slashing damage.

Tail. Melee Weapon Attack: +15 to hit, reach 20 ft., one target. Hit: 17 (2d8 + 8) bludgeoning damage.

Frightful Presence. Each creature of the dragon’s choice that is within 120 feet of the dragon and aware of it must succeed on a DC 19 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to the dragon’s Frightful Presence for the next 24 hours.

Acid Breath (Recharge 5–6). The dragon exhales acid in a 90-foot line that is 10 feet wide. Each creature in that line must make a DC 22 Dexterity saving throw, taking 67 (15d8) acid damage on a failed save, or half as much damage on a successful one.

Legendary Actions

The dragon 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 dragon regains spent legendary actions at the start of its turn.

Detect. The dragon makes a Wisdom (Perception) check.

Tail Attack. The dragon makes a tail attack.

Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 15 feet of the dragon must succeed on a DC 23 Dexterity saving throw or take 15 (2d6 + 8) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.

Large celestial, lawful good

Armor Class 21 (natural armor)
Hit Points 243 (18d10 + 144)
Speed 50 ft., fly 150 ft.

STR	DEX	CON	INT	WIS	CHA
26 (+8)	22 (+6)	26 (+8)	25 (+7)	25 (+7)	30 (+10)

Saving Throws Int +14, Wis +14, Cha +17
Skills Perception +14
Damage Resistances radiant; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities necrotic, poison
Condition Immunities charmed, exhaustion, frightened, poisoned
Senses truesight 120 ft., passive Perception 24
Languages all, telepathy 120 ft.
Challenge 21 (33000 XP)

Angelic Weapons. The solar’s weapon attacks are magical. When the solar hits with any weapon, the weapon deals an extra 6d8 radiant damage (included in the attack).

Divine Awareness. The solar knows if it hears a lie.

Innate Spellcasting. The solar’s spellcasting ability is Charisma (spell save DC 25). It can innately cast the following spells, requiring no material components: At will: ““, ““ (self only) 3/day each: ““, ““, ““ 1/day each: ““, ““

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

Actions

Multiattack. The solar makes two greatsword attacks.

Greatsword. Melee Weapon Attack: +15 to hit, reach 5 ft., one target. Hit: 22 (4d6 + 8) slashing damage plus 27 (6d8) radiant damage.

Slaying Longbow. Ranged Weapon Attack: +13 to hit, range 150/600 ft., one target. Hit: 15 (2d8 + 6) piercing damage plus 27 (6d8) radiant damage. If the target is a creature that has 100 hit points or fewer, it must succeed on a DC 15 Constitution saving throw or die.

Flying Sword. The solar releases its greatsword to hover magically in an unoccupied space within 5 feet of it. If the solar can see the sword, the solar can mentally command it as a bonus action to fly up to 50 feet and either make one attack against a target or return to the solar’s hands. If the hovering sword is targeted by any effect, the solar is considered to be holding it. The hovering sword falls if the solar dies.

Healing Touch (4/Day). The solar touches another creature. The target magically regains 40 (8d8 + 4) hit points and is freed from any curse, disease, poison, blindness, or deafness.

Legendary Actions

The solar 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 solar regains spent legendary actions at the start of its turn.

Teleport. The solar magically teleports, along with any equipment it is wearing or carrying, up to 120 feet to an unoccupied space it can see.

Searing Burst (Costs 2 Actions). The solar emits magical, divine energy. Each creature of its choice in a 10-foot radius must make a DC 23 Dexterity saving throw, taking 14 (4d6) fire damage plus 14 (4d6) radiant damage on a failed save, or half as much damage on a successful one.

Blinding Gaze (Costs 3 Actions). The solar targets one creature it can see within 30 feet of it. If the target can see it, the target must succeed on a DC 15 Constitution saving throw or be blinded until magic such as the ““ spell removes the blindness.

Large celestial, lawful good

Armor Class 19 (natural armor)
Hit Points 200 (16d10 + 112)
Speed 40 ft., fly 120 ft.

STR	DEX	CON	INT	WIS	CHA
24 (+7)	20 (+5)	24 (+7)	19 (+4)	22 (+6)	25 (+7)

Saving Throws Con +12, Wis +11, Cha +12
Skills Perception +11
Damage Resistances radiant; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities 
Condition Immunities charmed, exhaustion, frightened
Senses truesight 120 ft., passive Perception 21
Languages all, telepathy 120 ft.
Challenge 16 (15000 XP)

Angelic Weapons. The planetar’s weapon attacks are magical. When the planetar hits with any weapon, the weapon deals an extra 5d8 radiant damage (included in the attack).

Divine Awareness. The planetar knows if it hears a lie.

Innate Spellcasting. The planetar’s spellcasting ability is Charisma (spell save DC 20). The planetar can innately cast the following spells, requiring no material components: At will: ““, ““ (self only) 3/day each: ““, ““, ““, ““ 1/day each: ““, ““, ““

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

Actions

Multiattack. The planetar makes two melee attacks.

Greatsword. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 21 (4d6 + 7) slashing damage plus 22 (5d8) radiant damage.

Healing Touch (4/Day). The planetar touches another creature. The target magically regains 30 (6d8 + 3) hit points and is freed from any curse, disease, poison, blindness, or deafness.

Medium undead, chaotic evil

Armor Class 12
Hit Points 22 (5d8)
Speed 30 ft.

STR	DEX	CON	INT	WIS	CHA
13 (+1)	15 (+2)	10 (+0)	7 (-2)	10 (+0)	6 (-2)

Saving Throws
Skills
Damage Resistances
Damage Immunities poison
Condition Immunities charmed, exhaustion, poisoned
Senses darkvision 60 ft., passive Perception 10
Languages Common
Challenge 1 (200 XP)

Actions

Bite. Melee Weapon Attack: +2 to hit, reach 5 ft., one creature. Hit: 9 (2d6 + 2) piercing damage.

Claws. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 7 (2d4 + 2) slashing damage. If the target is a creature other than an elf or undead, it must succeed on a DC 10 Constitution saving throw or be paralyzed for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Medium undead, chaotic evil

Armor Class 13
Hit Points 36 (8d8)
Speed 30 ft.

STR	DEX	CON	INT	WIS	CHA
16 (+3)	17 (+3)	10 (+0)	11 (+0)	10 (+0)	8 (-1)

Saving Throws
Skills
Damage Resistances necrotic
Damage Immunities poison
Condition Immunities charmed, exhaustion, poisoned
Senses darkvision 60 ft., passive Perception 10
Languages Common
Challenge 2 (450 XP)

Stench. Any creature that starts its turn within 5 feet of the ghast must succeed on a DC 10 Constitution saving throw or be poisoned until the start of its next turn. On a successful saving throw, the creature is immune to the ghast’s Stench for 24 hours.

Turning Defiance. The ghast and any ghouls within 30 feet of it have advantage on saving throws against effects that turn undead.

Actions

Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one creature. Hit: 12 (2d8 + 3) piercing damage.

Claws. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) slashing damage. If the target is a creature other than an undead, it must succeed on a DC 10 Constitution saving throw or be paralyzed for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

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)

Saving Throws
Skills Deception +9, Insight +5, Perception +5, Persuasion +9, Stealth +7
Damage Resistances cold, fire, lightning, poison; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities
Condition Immunities
Senses darkvision 60 ft., passive Perception 15
Languages Abyssal, Common, Infernal, telepathy 60 ft.
Challenge 4 (1100 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.

Large fiend (demon), chaotic evil

Armor Class 15 (natural armor)
Hit Points 104 (11d10 + 44)
Speed 40 ft., fly 60 ft.

STR	DEX	CON	INT	WIS	CHA
17 (+3)	15 (+2)	18 (+4)	8 (-1)	13 (+1)	8 (-1)

Saving Throws Dex +5, Wis +4, Cha +2
Skills 
Damage Resistances cold, fire, lightning; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities poison
Condition Immunities poisoned
Senses darkvision 120 ft., passive Perception 11
Languages Abyssal, telepathy 120 ft.
Challenge 6 (2300 XP)

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

Actions

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

Beak. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) piercing damage.

Talons. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 14 (2d10 + 3) slashing damage.

Spores (Recharge 6). A 15-foot-radius cloud of toxic spores extends out from the vrock. The spores spread around corners. Each creature in that area must succeed on a DC 14 Constitution saving throw or become poisoned. While poisoned in this way, a target takes 5 (1d10) poison damage at the start of each of its turns. A target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. Emptying a vial of holy water on the target also ends the effect on it.

Stunning Screech (1/Day). The vrock emits a horrific screech. Each creature within 20 feet of it that can hear it and that isn’t a demon must succeed on a DC 14 Constitution saving throw or be stunned until the end of the vrock’s next turn.