Deathless

As you cast the spell, you draw sigils that link you to the living world for 24 hours after casting the spell if you would die instead a magical coffin appears if 3 creatures spend their entire turn giving blood to the coffin in the form of 1/3 of each of the creatures hit points or 3 blood counters each you return to life as if you have had a long rest.

You can create permanent sigils by casting this spell every day for one year.