Aqua Edge

You create three disks of water in a triangle around yourself. Each disk hits a target of your choice that you can see within range. A disk deals 1d4 +1 bludgeoning damage to its target. The disks all strike at once and you can make them hit one target or several.  

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the spell creates one more disk for each slot level above 1st.