The Ultimate Sacrifice

You drop down to your knees and forgo all equipment except the clothes on your body. You pray as blood and other liquids drain from your pores. You must make 3 constitution saving throws with a DC of 16. If all are succeeded, you collapse on 1 hp and all targets (up to 1,000,000) are pure and forgiven for all wrongdoing and given 200 temporary hit points for 1 hour. When succeeded, you cannot use this spell again. When at least 1 save fails, you collapse at 1 hp and must do the spell again after a long rest immediately or you must remove this spell.