Boss Spider

Spider climb. The Spider can climb on difficult surfaces, including ceilings, without having to make an ability . 

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

Web Walker. The Spider ignores movement restrictions caused by Webbing

Multi Attack. The Spider takes 4 attacks per turn: 3 with its Bite, and 1 Lash (leg)

Bite. Melee Weapon Attack: +13 to hit, reach 5 ft., 1 target. Hit:  3d8 + 6 Piercing damage. And the target must make a DC 19 Constitution saving throw, taking 4d10 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 1 hour, even after regaining hit points, and is paralyzed while poisoned in this way.

Lash. Melee Weapon Attack: +13 to hit, reach 5 ft., 1 target. Hit: 3d10+6 Bludgeoning.

Web (recharge 5-6). RangedWeapon Attack: +12 to hit, range 40/80 ft., 1 target. Hit: The target is restrained by webbing. As an action, the restrained target can make a DC 17 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).

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