Guardian Naga

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:

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.