Electrocution

A surge of water spins into a perfect sphere in your open palm and is launched at devastating speed to a point you choose within range and then with the crackle of lightning causes an explosion of high-pressured water infused with electricity. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. A target takes 8d6 lightning damage on a failed save and is paralyzed for one turn, or half as much damage on a successful one.

The water spreads around corners. It extinguishes burning objects in the area that aren't being worn or carried.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.