Choose a creature you can see within range. It must make a Constitution saving throw, otherwise it is poisoned. While it is poisoned by this spell, it takes damage equal to half the damage it does with weapon attacks. At the end of each of the creature’s turns, it may repeat the saving throw, ending the spell on success.

At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, you can target one additional creature for each slot level above 1st.