Corrode

You point at a target within range, temporarily enveloping it in a caustic mist. The target takes 1d6 acid damage. If it is a creature, it must make a Constitution saving throw or have disadvantage on attack rolls for the duration of the spell. An affected creature may repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

At higher levels: The damage increases by 1d6 for each slot level above 1st .