Hold Breath: The spider can hold its breath for 30 minutes using an air bubble affixed to the underside of its abdomen. Spider Climb: The spider can climb difficult surfaces, including upside down on ceilings without needing to make an ability check. Water Sense: While in contact with water, the spider knows the exact location of any other creature in contact with the water within 100 feet. Web Walker: The spider ignores movement restrictions caused by webbing.
Bite: Melee Weapon Attack: +5 to hit, reach 5 ft, one target. Hit: 7 1d8+3 piercing damage, and the target must make a DC 11 Consitution saving throw, becoming poisoned for 1 hour on a failed save. The target is paralyzed while poisoned this way.
A giant water spider has an abdomen about 6 feet in diameter, and gangly legs. It has coarse grat-green fur is often adorned with bits of algae and weeds An oval air bubble is affixed underneath its abdomen.