Spider Climb. The spider can climb difficult surfaces, including along ceilings, without needing to make an ability check.
Web Walker. The spider ignores movement restrictions caused by webs, and the spider knows the location of any other creature in contact with the same web.
Bite. Melee Attack Roll: +4, reach 5 ft. Hit: 1 Piercing damage plus 2 (1d4) Poison damage.