Death Blossom

The spell can only be used once you have been attacked, by spend your reaction to activate this spell you create a sphere of dark energy around you and if the creature that just attacked you is in that sphere it takes 4d6 necrotic damage. Any other creatures take half damage by this spell.

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