Bella Bells-On

Special Equipment. Bella carries a face paint palette* with 5 uses remaining. She has painted her face with the butterfly pattern (included in her stat block).
Shapechanger. Bella can use her action to polymorph into a spider-humanoid hybrid or into a giant spider, or back into her true form, which is humanoid. Her statistics, other than her AC, are the same in each form. Any equipment she is wearing or carrying isn’t transformed. Bella reverts to her true form if she dies.
Acrobatic. Bella’s base long jump and high jump are 20 feet, with or without a running start. As long as Bella is able to move, she can fall up to 50 feet without taking fall damage or landing prone.
Sneak Attack (1/Turn). Bella deals an extra 7 (2d6) damage when she hits a target with a weapon attack and has advantage on the attack roll, or when the target is within 5 feet of an ally of Bella’s that isn’t incapacitated and she doesn’t have disadvantage on the attack roll.
Spider Climb (Giant Spider or Hybrid Form Only). Bella can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
Web Sense (Giant Spider or Hybrid Form Only). While in contact with a web, Bella knows the exact location of any other creature in contact with the same web.
Web Walker (Giant Spider or Hybrid Form Only). Bella ignores movement restrictions caused by webbing.

Multiattack (Humanoid or Hybrid Form Only). Bella makes two kick attacks, or one kick and one bite attack.
Bite (Giant Spider or Hybrid Form Only). Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit: 7 (1d8 + 3) piercing damage and the target must succeed on a DC 13 Constitution saving throw or take 9 (2d8) poison damage, or half as much on a success. If the poison damage reduces the target to 0 hit points, it is stable but poisoned for 1 hour and paralyzed for as long as it is poisoned. If the target is a humanoid, it must
succeed on a second DC 13 Constitution saving throw or be cursed with werespider lycanthropy.
Kick (Humanoid or Hybrid Form Only). Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit: 7 (1d8 + 3) bludgeoning damage.
Web (Giant Spider or Hybrid Form Only, Recharges 5-6). Ranged Weapon Attack: +5 to hit, range 30/60 ft., one creature. Hit: The target is restrained by webbing. As an action the restrained target can attempt a DC 14 Strength check, bursting the webbing on a success. The webbing can also be attacked and destroyed (AC 10; 10 hit points; vulnerability to fire damage; immunity to bludgeoning, poison, and psychic damage).