Arachne

Queen Of The Eight-Legged. Arachne has advantage on all Dexterity and Strength Saving Throws.

Critical Weakness. If you are less than 6 feet away, you perform a DC 10 roll to see if it attacks the underside of the spider after breaking armor class. If hit on the underside, check reactions...

Spellcasting. Arachne is a 2nd-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 10, +1 to hit with spell attacks). Arachne has following Wizard spells prepared:
Cantrips (at will): Acid Splash
1st level (4 slots): Disguise Self, Earth Tremor                                                                          2nd Level (2 slots): Agnazzar's Scorcher

Multiattack. Arachne lashes out at you with multiple of her legs at once.  Roll a D4 to determine how many times she attacks with the following.

Psychedelic Saliva. Arachne can take a turn to grab an enemy within 5 feet of her and bite, does no immediate damage, but after two full rounds, that creature is unconscious for three turns. ONLY USE TWICE PER ENCOUNTER.

Acid Lash. Melee Weapon Attack: +2 to hit, reach 10 ft., 1 target. Hit: 10 (1d6 + 3) Acid damage. 

Poison Spit. Ranged Weapon Attack: +3 to hit, range 30/80 ft., 1 target. Hit: 9 (2d4 + 2) Poison damage.

Arachne can use a bonus action to move an extra 20 feet.

Regal Entitlement. After an attack to her underside, Arachne can revolt with a single acid lash attack.

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