Acid Fog

Acid Fog
Conjuration [acid, earth]
Level 6 (exotic)
Casting Time 1 standard action
Components V, S, M (powdered peas and a hoof)
Range medium (50 ft./level)
Effect fog spreads in 20-ft. radius, 20 ft. high
Duration 1 round/level
Saving Throw none
Spell Resistance no

Acid fog creates a billowing mass of misty vapors like the solid fog spell. In addition to slowing down creatures and obscuring sight, this spell’s vapors are highly acidic. Each round on your turn, starting when you cast the spell, the fog deals 2d6 points of acid damage to each creature and object within it.