Corrosive Cataclysm

You unleash a torrent of corrosive energy, mimicking the destructive capabilities of both the Rust Monster and the Gray Ooze. Choose a point within range. A 20-foot radius sphere centered on that point becomes saturated with a volatile mixture of rust and acid.

Each creature in the area must make a Dexterity saving throw. On a failed save, a creature takes 10d10 acid damage and 10d10 slashing damage, or half as much damage on a successful one. Additionally, nonmagical objects in the area that are not being worn or carried are instantly corroded and destroyed.