Broodmother

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

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

Web Walker. The spider ignores movement restrictions caused by webbing.

Web Spawner. The Broodmother can spawn spiderlings that can attack for her. 

Mother Web. Any spider or spider like creature nearby, will come to defend the Broodmother.

Connected Mind. If charmed the charm will go to a spiderling.

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 1 piercing damage, and the target must succeed on a DC 9 Constitution saving throw or take 2 (1d4) poison damage.

Spawn. Uses Web Spawner to spawn a Spiderling.

Huge Spawn. Can spawn three spiders.

Web Weaver. Webs spawn all around the battlefield.