Acid Rain

A sinewy black raincloud appears in a 5-foot-diameter space of your choice within range and lasts for the duration. The cloud 's area and the area beneath it are heavily obscured. Any exposed non-magical flames in the area beneath the cloud are extinguished. Any creature that ends its turn under the cloud or within 5 feet of it must make a Constitution saving throw. The creature takes 6d4 acid damage on a failed save, or half as much damage on a successful one. As a bonus action, you can move the cloud up to 20 feet. The cloud can pass through small holes, narrow openings, and even mere cracks, though it treats liquids as though they were solid surfaces. The cloud lasts for the duration or until a gust of moderate or greater speed (at least 10 miles per hour) disperses it.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 2d4 for each level above 2nd.

This homebrew spell is among a small selection of Acid magic created for a campaign featuring a player-character who wished to expand their spell list to align with their Sorcerer's Draconic Heritage. Many such spells are attempts to re-flavor existing magic under an acid theme – this spell is a hodgepodge of several spells in one. To view the whole list, please reference my username, Grumbler, while searching. I'm happy to accept and consider any criticism or insight in the development of these spells.