Force wall spell

[Nobs]

Hello mages and witches.

Have you all ever been in a cave with just to many critters and other nasties for your fighter to deal with?
Perhaps you remember that 1 time when you had to run away but that pesky rogue was just to fast with that blinding speed?

Force wall.
The caster forms a wall of force infront of him.

Size. (What ever the distance is to block a avarage hall or tunnel)
No spells or projectiles can pass through the wall.
The wall has 800 hp (or perhaps a base hp +(Numbers) per caster level.
The wall has no ac and no dr.
The wall can be dispelled but not breached.

Abjuration? Conjuration? Illusion? im sure there could be a few variants to the spell.

[garrbear758]

I'm going to deny this based on the fact that I can think of way too many ways this could be used for trolling or griefing.