Blood Pool

You create a pool of slow churning blood. As an action you create a 10 ft. radius circle on a horizontal space. Whenever a creature first enters the area or at the start of their turn they must make a constitution saving throw. On a failure the area is considered difficult terrain and the target takes 3d6 necrotic damage. On a success the target takes half damage and can move normally. Additionally, as a bonus action, you can move the pool 20 feet on a horizontal surface.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each slot level above 2nd.