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 the web. Web Walker: The spider ignores movement restrictions caused by webbing.
Bite: Melee Weapon Attack: +6 to hit, reach 5 ft, one target. Hit: 2 1d4 piercing damage, and the target must make a DC 10 Consitution saving throw, taking 3 1d6 poison damage on a failed save, or half as much on a successful one, If the poison damage reduces the target to 0 hit points, the target is stable but poisoned for 1 hour, even after regaining hit points, and is paralyzed while poisoned in this way.
A giant crab spider has an abdomen about 1 to 2 feet in diameter, although flattened to hide in a rocky crevasse or wooden deadfall. It has coarse brown fur and spindly legs about 2 feet long.