Arctic Burst

Ripping the moisture from the air around you a ball of ice bursts from your palm to a point you choose within range and then chills everything within a 20-foot-radius sphere centered on that point. Creatures caught in the burst must make a Dexterity saving throw. A target takes 8d6 cold damage on a failed save, or half as much damage on a successful one.

The ground around the impact is coated in ice, creating difficult terrain in the area until your next turn. Water within the sphere that is not part of a creature is flash-frozen up to a foot in depth.

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.