Blood Sacrifice

The caster cuts the palm of their and a few drops of blood fall to the floor. the ground beneath the target erupts into a large bear trap. Getting caught in the snapping jaws, the target takes 22d6 necrotic damage.

The caster's maximum hit points are reduced to 1, they fall unconscious and must complete a long rest before regaining consciousness. The caster returns to their maximum hit points over 1d4 weeks. A Wish spell can return the hp back to normal sooner.