TexasXtreme's 5E SRD
Monsters N

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
Damage Immunities poison
Condition Immunities charmed, poisoned
Senses darkvision 60 ft., passive Perception 14
Languages Celestial, Common
Challenge 10 (5,900 XP)

Rejuvenation

If it dies, the naga returns to life in 1d6 days and regains all its hit points. Only a wish 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)

mending, sacred flame, thaumaturgy

1st level (4 slots)

command, cure wounds, shield of faith

2nd level (3 slots)

calm emotions, hold person

3rd level (3 slots)

bestow curse, clairvoyance

4th level (3 slots)

banishment, freedom of movement

5th level (2 slots)

flame strike, geas

6th level (1 slot)

true seeing

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.

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
Damage Immunities poison
Condition Immunities charmed, poisoned
Senses darkvision 60 ft., passive Perception 12
Languages Abyssal, Common
Challenge 8 (3,900 XP)

Rejuvenation

If it dies, the naga returns to life in 1d6 days and regains all its hit points. Only a wish 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)

mage hand, minor illusion, ray of frost

1st level (4 slots)

charm person, detect magic, sleep

2nd level (3 slots)

detect thoughts, hold person

3rd level (3 slots)

lightning bolt, water breathing

4th level (3 slots)

blight, dimension door

5th level (2 slots)

dominate person

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.