Choldrith Queen

Fey Ancestry. The chitine has advantage on saving throws against being charmed, and magic can't put the chitine to sleep.

Spellcasting. The choldrith is a 12th-level spellcaster. Its spellcasting ability is Wisdom (spell save DC 16, +8 to hit with spell attacks). It has the following cleric spells prepared:

Cantrips (at will): message, poison spray, thaumaturgy

1st level (4 slots): bane, cure wounds, inflict wounds

2nd level (3 slots): blindness/deafness, silence, spiritual weapon

3rd level (3 slots): bestow curse, dispel magic, glyph of warding

4th level (3 slots): banishment, divination, freedom of movement

5th level (1 slot): contagion, insect plague, mass cure wounds

6th level (1 slot): harm, true seeing

Spider Climb. The choldrith can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Sunlight Sensitivity. While in sunlight, the chitine has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.

Web Sense. While in contact with a web, the chitine knows the exact location of any creature in contact with the same web.

Web Walker. The chitine ignores movement restrictions caused by webbing.

Multiattack. The choldrith makes two attacks with its dagger.

Dagger. Melee or Ranged Weapon Attack: +7 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 8 (2d4 + 4) piercing damage plus 10 (3d6) poison damage.

Web (Recharge 5-6). Ranged Weapon Attack: +7 to hit, range 30/60 ft., one creature. Hit: The target is restrained by webbing. As an action, the restrained target can make a DC 16 Strength check, bursting the webbing on a success. The webbing can also be attacked and destroyed (AC 10; hp 5; vulnerability to fire damage; immunity to bludgeoning, poison, and psychic damage).

Battle Command. As a bonus action, the choldrith targets one ally it can see within 30 feet of it. If the target can see or hear the choldrith, the target can use its reaction to make one melee attack or to take the Dodge or Hide action.