You create an invisible wall of absolute zero temperature on space within range you can see. The wall is 30 feet long, 10 feet high and 10 feet thick last for the duration.
If humidity is higher than 70%, you can see snowflakes floating within the wall area. If you cast in the water, water will transform to ice cube as the area of the spell area. Ice cube has 15HP and if HP drop to 0, it destroys but not affect to the spell area.
If the creature walks through the space of the wall, the creature within spell area must make a Constitution saving throw. On a failed save, the creature's movement speed decrease to 0, or half movement speed on a successful save until start of its next turn.
If the creature end it turn within area of the wall, that creature takes 3d8 cold damage on a failed save, or half as much damage on a successful one after making a Constitution saving throw.
At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the length, width and height of the wall increase by 5 feet for each area, for each slot level above 3rd.
* - (A piece of ice cube)