Blizzard

A cloud of frost forms up above in a 60-foot- radius sphere from a point within range. Each creature who starts their turn in that area must make a Constitution saving throw. A target takes 9d6 cold damage on a failed save, or half as much damage on a successful one. Targets who have failed the save are no longer required to continue rolling against it but gain 1 level of exhaustion at the start of their subsequent turns instead while they are still within the blizzard. Leaving the blizzard and then re-entering it after a full turn out of it will cause the target to be make the save again.

At Higher Levels. When you cast this spell using a spell slot of 9th level or higher, the damage increases by 3d6 for each slot level above 8th.