Acid Fog

Caster Level: Wizard/Sorcerer 6, Cleric 6 (Destruction Domain)
Innate Level: 6
School: Conjuration
Components: V,S
Range: Long
Save: None
Spell Resistance: No
Area of Effect: Large
Duration: 1 Round/2 Levels (10 Rounds Max)
Additional Counterspells: None
Description: Creatures entering the AoE take 8d6 acid damage. For every round a creature is in the fog it takes 4d6 acid damage.