Galvantula (5e Creature)
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tiny beast, unaligned
Spider Climb. The galvantula can climb difficult surfaces, including upside down on ceilings, without making an ability check.
Web Sense. While in contact with a web, the galvantula knows the exact location of any other creature in contact with the same web.
Web Walker. The galvantula ignores movement restrictions caused by webbing.
Bite. Melee Weapon Attack: +2 to hit, reach 5 ft., one creature. Hit: 1 piercing damage and the creature must succeed on a DC 9 Constitution saving throw or take 2 (1d4) poison damage.
Electric Web. As an action, the galvantula can cast the spell web, but every creature that ends their turn in that web takes 2 (1d4) lightning damage.
Galvantula have the ability to weave webs in ridiculous speeds, being able to create a wall of electric webs in seconds. In the wild, they use this trait to catch food, but when trained, they can do it to capture or evade enemies before coming back for another strike. Sometimes they hunt in groups, but not always since they're used to being alone in the forests they call home.