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.
Internal Acid. When the toad is reduced to 0 hp, it explodes in a 10-foot-radius sphere. Each creature in the area must make a DC 12 Dexterity saving throw, on a failed save the creature takes 7 (2d6) acid damage and it is soaked in acid, or half as much damage on a successful one.
At the start of each of its turns, a target soaked in acid must make a Constitution saving throw. On a failed save, it takes 4 (1d6+1) acid damage. On a successful save, the creature is no longer soaked in acid.
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.
For the hive. The acid sulfur spider takes 1 (1d4)