Cloud of Frost

You create a 15-foot radius sphere of billowing frost centered on a point you choose within range. The frost cloud spreads around corners. It lasts for the duration or until a strong wind disperses the frost, ending the spell. Its area is heavily obscured.

When a creature enters the spell's area for the first time on a turn or starts its turn there, that creature must make a Constitution saving throw. The creature takes 4d6 cold damage on a failed save, or half as much damage on a successful one.

Until the spell ends, you can move the frost cloud up to 20 feet to another point within range as part of any action you take on your turn, except an action to cast another spell of 1st level or higher. If you end your turn without taking such an action (whether you move the frost cloud or not) the spell ends.

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.