Wall of Earth

You raise a wall of rock, stone, and dirt from the Earth creating a 15 foot high wall, filling 3 5x5 foot squares. This wall acts as full cover and must be placed between the attacker and the creature hit by the ranged attack or ranged spell attack. Creatures occupying spaces of the wall rise with the wall if they are of size Medium or smaller. Otherwise, they are pushed to the nearest unoccupied space at the discretion of the DM.

At the start of you next turn, the Wall of Earth crumbles and falls to the ground, creating difficult terrain in the spaces it occupied. Creatures atop the wall fall as well, taking 1d6 bludgeoning damage and are forced to make a Dexterity saving throw. On a Fail, they are knocked prone.