Breath of Belladonna

You consume the belladonna berries used as a material component, taking 1d10 poison damage, and breathe out a poisonous cloud. Each creature in a 15-foot cube originating from you must make a Constitution saving throw. On a failed save, a creature takes 3d10 poison damage and is poisoned until the start of your next turn. On a success, the creature takes half as much damage and isn’t poisoned. A creature that doesn’t need to breathe automatically succeeds on its saving throw.

At Higher Levels. If you use a spell slot of 3rd level or higher to cast this spell, the damage you deal increases by 1d10 for each slot level above 2nd. The damage you take doesn’t increase.