Acid Fog

6th-level conjuration

Casting Time: 1 action

Range: 90 feet

Components: V, S, M (a pinch of dried, powdered peas combined with powdered animal hoof)

Duration: Concentration, up to 1 minute

A billowing cloud of acidic fog appears in a 20-foot-radius sphere centered on a point within range. The cloud spreads around corners and is heavily obscured. It lasts for the duration or until a wind of moderate or greater speed (at least 10 miles per hour) disperses it.

When the cloud appears, each creature in it must make a Constitution saving throw. On a failed save, a target takes 8d6 acid damage and has its AC reduced by 2 until the end of its next turn. On a successful save, a creature only takes half the damage. A creature must also make this saving throw when it enters the spell’s area for the first time on a turn or ends its turn there.

The cloud moves 10 feet directly away from you in a direction that you choose at the start of each of your turns.