Toxic Sting

You manifest potent poisonous barbed along the striking edge of your weapon before making a melee attack with it. This causes your attack to deal an additional 2d10 poison damage and the target must make a Constitution Saving throw, being poisoned for 1 minute on a failure.

At Higher Levels. When cast using a 2nd level or higher spell slot, increase the damage dealt by 1d10 per slot level above 1st used.