.Legendary Resistance (3/Day). If the spider fails a saving throw, it can choose to succeed instead.
Multiattack. The spider makes one Web Strand attacks, uses Reel, and makes two Bite attacks.
Bite. Melee Weapon Attack: +13 to hit, reach 10 ft., one target. Hit: 21 (3d8 + 8) piercing damage plus 10 (3d6) acid damage.
Web Strand. Ranged Weapon Attack: +13 to hit, reach 120 ft., one creature. Hit: The target is grappled (escape DC 18). The web strand can be attacked and destroyed (AC 12; 20 hit points; vulnerability to fire damage; immunity to bludgeoning, poison, and psychic damage). The spider can grapple up to six creatures at a time using its web strands.
Reel. The spider pulls each creature grappled by it up to 60 feet straight toward itself.
Lair and Lair Actions
Mothers children if the adventures touch the webbing 1d6 giant spiders will spawn to a max of 10 spiders
magical webbing if something or some one gets stuck in the webbing they have to make a strength saving throw of 17 or become grappled. and cant escape unless they are cut out or break themselves out by succeeding the throw
the webbing is resistant to non magical weapons and immune to nonmagical fire and has 15 Health