Acid storm

Acid storm was a spell that caused acid to rain down in an area 20 feet (6 meters) in diameter.

Components
The material component of this spell was a flask of acid.

Crafting
This spell was one of several that could be used in the creation of acidic burst weapons.

History
Acid storm was created by the Red Wizards, who called it acid rain. By 1372 DR, the spell was known throughout the Realms.