Fumes of Fury
Conjuration (Creation)  [Acid]
Level: Sor/Wiz 3
Components: V, S, M
Casting Time: 1 action
Range: Personal
Target/Area/Effect: A cube, 5 ft. to a side
Duration: See text
Saving Throw: Reflex half
Spell Resistance: No
You create a poisonous cloud of gasses within your lungs which you expel upon a creature that is adjacent to you. If you do not expel the gas within three rounds you suffer the damage of the gas as it turns into acidic mist inside of you, no save. Upon expelling the gas it immediately turns into an acidic mist and fills a 5 ft. by 5 ft. by 5 ft. cubic area directly in front of you. Creatures and items within the area of effect suffer 1d8 points of acid damage per caster level to a maximum of 10d8. If you are struck by weapon while you hold the gas in your mouth you must make a Concentration check (20+ 1/point of damage) to avoid expelling the gas. You cannot cast spells which require a verbal component while holding the gas in your mouth. Expelling the gas from your lungs is a move equivalent action.
    Material Component: A poisonous mushroom. Eat the mushroom immediately before casting the spell.