Wall of Frost

You create a wall of ice on a solid surface within range. You can make a wall up to 60 feet long, 20 feet high and 1 foot thick, or a ringed wall up to 20 feet in diameter, 20 feet high and 1 foot thick. Any creature that would be occupying the space of the well when this spell is cast are pushed into the closest unoccupied space away from it. The wall has an Armor Class of 16, Hit Points equal to 4x your Spellcasting modifier and is resistant to Slashing damage and Immune to Cold damage.

For each level of spell slots used to cast this spell beyond 2nd, increase the wall's Hit Points by an additional amount equal to your Spellcasting modifier. If you cast this spell at 5th level or higher, its Armor Class becomes 19 instead.