You create a 25-foot-radius sphere of acidic, white-green fog centered on a point you choose within range. The fog spreads around corners. It lasts for the duration or until strong wind disperses the fog, ending the spell. Its area is lightly obscured.
When a creature enters the spell's area for the first time on a turn or starts its turn there, that creature must make a Constitution saving throw. The creature takes 5d4 acid damage on a failed save, or half as much damage on a successful one.
Additionally, nonmagical armor is corroded by the fog. when a creature wearing nonmagical armor is damaged by this spell the AC bonus granted by their armor is permanently reduced by 2. Adamantine armor is immune to this effect (so is glass but who's wearing glass armor?)
* - (a vial of acid)
Comments