Otiluke's Acid Cloud

This spell creates a small crystalline sphere filled with a yellowish-brown mist. The crystal sphere must be used within three rounds or its contents become useless. The sphere can be thrown up to 20 yards as a grenade-like missile. When the sphere shatters, the mist is released, filling the air in a 30-foot radius with yellowish acid fumes.

Everything within the area of effect is affected as if placed in an acid bath. All creatures within the fumes take 4d4 points of acid damage immediately, with no saving throw, and suffer 1d4 points of damage for every additional round of exposure to the fumes. All objects touched by the acid fumes must make a saving throw vs. acid or be eaten away. For every additional round of exposure to the fumes, an item must save again. The acid bath remains in existence for one round per two levels of the caster, but any wind, rain, or turbulent atmospheric condition negates the spell in a round.

The material component is a small vial of diluted aqua regia (royal water).

Notes: Uncommon or rare spell (WoG).