Eldritch Web (3.5e Invocation)

You create a web of glowing energy which is tacky and disrupts movement, and shocks the creatures stuck in it with eldritch energies. Treat this as a web spell, but you can shape it as needed and it is not flammable, or even able to be damaged (though it may be dispelled). Each round, those stuck inside it at the beginning of their turn take your eldritch blast damage. You may have up to one eldritch web in effect at one time, a second casting dispels the first.

You and allies do not take damage from the eldritch energy, though you are still entangled as normal. However, the invoker himself can pass through the webs and not be slowed at all.