Tidal Surge

As you outstretch your hands towards a target within 60-feet of you with your waterskin, the water inside the water skin turns into a twisting ray of freezing torrential water which crashes outward towards the target. Each creature in a 30-foot cone of the target must make a Dexterity saving throw, taking 6 (2d6) cold damage plus 3 (1d6) bludgeoning damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the cold damage increases by 1d6 for each slot level above 1st.