Waterblight Bolt

You hurl a large glob of glowing, watery energy at a target within range. Make a ranged spell attack at the target. On a hit, the target takes 2d6 acid damage and must succeed on a Constitution saving throw or be afflicted with waterblight for 1 minute. 

(A creature afflicted with waterblight is poisoned, but while poisoned in this way, on its turns, the creature can take an Action or a Bonus Action, but not both).

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the acid damage increases by 1d6 for each spell level above 1st.