Guardian Naga

If the naga dies, it returns to life in 1d6 days and regains all its Hit Points unless a Dispel Evil and Good spell is cast on its remains.

The naga makes two Bite attacks. It can replace any attack with a use of Poisonous Spittle.

Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 17 (2d10 + 4) piercing damage plus 22 (4d10) poison damage.

Ranged Weapon Attack: +8 to hit, range 60 ft., one creature. Hit: 31 (7d8) poison damage, and the target must succeed on a DC 16 Constitution saving throw or be blinded until the start of the naga's next turn.

The naga casts one of the following spells, requiring no Somatic or Material components and using Wisdom as the spellcasting ability (spell save DC 15): At Will: Thaumaturgy 1/Day Each: Clairvoyance, Cure Wounds (level 6 version), Flame Strike (level 6 version), Geas, True Seeing