Aranea

Web Sense. While in contact with a web, the aranea knows the exact location of any other creatures in contact with the same web.

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

Spellcasting. The aranea is a 3rd-level spellcaster. Its spellcasting ability is intelligence (spell save DC 12, +4 to hit with spell attacks). The aranea has following wizard spells prepared:
Cantrips (at will): mage hand, poison spray, minor illusion

1st level (4 slots): charm person, detect magic, magic missile, shield

2nd level (2 slots): melf's acid arrow, mirror image

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing damage, and the target must make a DC 11 Constitution saving throw, taking 9 (2d8) poison damage on a failed save, or half as much damage on a successful one. If the poison damage reduces the target to 0 hit points, the target is stable but poisoned for 1 hour, even after regaining hit points, and is paralyzed while poisoned in this way.

Web (Recharge 6). RangedWeapon Attack: +4 to hit, range 20/40 ft., one target. Hit: The target is restrained by webbing. As an action, the restrained target can make a DC 12 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).