Wall of Blood

You use a fallen enemy's body to create a wall of blood which erupts from the corpse. You can make the wall up to 30 feet long, 10 feet high, and 1 foot thick, or you can make a ringed wall up to 20 feet in diameter, 20 feet high, and 1 foot thick. The wall vanishes when the spell ends. The wall’s space is difficult terrain.

Any ranged weapon attack that enters the wall’s space has disadvantage on the attack roll. Any enemy within the wall when the spell is cast may make a Dexterity saving throw, if successful they take half damage. When it enters the wall for the first time on a turn or ends its turn there takes 5d8 damage and must make a Wisdom saving throw or become frightened. They may attempt a new Wisdom saving throw on their next turn. 

A frightened creature has disadvantage on Ability Checks and Attack rolls while the source of its fear is within line of sight.
The creature can’t willingly move closer to the source of its fear, which is the caster.