Creates a many-layered mass of strong, sticky strands that entangle targets within them. A successful Reflex save negates this effect. Entangled creatures may attempt to make a Strength check every 2 seconds to escape. Area of effect fire spells will destroy these webs and free any entangled creatures. Incorporeal creatures, oozes, and spiders are naturally immune. Fire elementals and other fire creatures are immune because they burn through the webs.