Bloodburst

You cause the blood to burst within one creature that you can see within range. The target must make a Constitution saving throw. On a failed save, the target takes 1d6 necrotic damage, and it is knocked prone.

At Higher Levels. The spell’s damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).