Mechanical Servant. If Samaran is the target of a melee attack and the servant is within 5 feet of the attacker. Samaran can use her reaction to command the servant to respond,using its reaction to make a melee attack against the attacker.
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.
Bite. Single target. +5 to hit. 1d8 + 3 piercing damage, and target must take a DC 11 Constitution saving throw, taking 2d8 poison damage on a failed save, or half as much on a successful one. If the poison damage reduces the target to 0 HP, the target is stable but poisoned for 1 hour, even after regaining hit points, and is paralyzed while poisoned in this way.
Web (Recharge 5-6). Ranged (30/60 ft) weapon attack, single target. +5 to hit. On successful hit, the target is restrained by webbing. As an action, the restrained target can make a DC 12 Strength check, bursting the webbing on success. The webbing can also be attacked and destroyed (AC 10, hp 5, vulnerability to fire damage, immunity to bludgeoning, poison, and psychic damage)