The spider has imprecise tremorsense to detect the vibrations of creatures touching its web.

Web Sense

This monster doesn&#x27;t have a single mind (typically because it&#x27;s a swarm of smaller creatures), and is immune to mental effects that target only a specific number of creatures. It is still subject to mental effects that affect all creatures in an area.

Swarm Mind

Each enemy in the spider swarm&#x27;s space takes 4d8 piercing damage with a DC 32 Basic Reflex save. A creature that fails its save takes 2d8 persistent piercing damage and is <a href="/condition/dazzled">Dazzled</a> for as long as the persistent damage remains.

Cloud of Bristles

@Localize[PF2E.NPC.Abilities.Glossary.SwarmMind]

Each enemy in the spider swarm's space takes @Damage[4d8[piercing]] damage with a @Check[reflex|dc:32|basic|options:area-effect,inflicts:dazzled,inflicts:persistent-damage] save. A creature that fails its save takes @Damage[2d8[persistent,piercing]] damage and is @UUID[Compendium.pf2e.conditionitems.Item.Dazzled] for as long as the persistent damage remains.

Bristle Swarm