Cold Flame

You lob a ball of arcane energy to a point in range that you can see, the ball then detonates in a blast of blue flames. Each creature in a 20-foot-radius sphere centered on that point must make a Constitution saving throw. A target takes 8d8 cold damage on a failed save, or half as much damage on a successful one.

The blast spreads around corners. It flash-freezes objects in the area that aren't being worn or carried.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d8 for each slot level above 5th.