Unbreakable Vow

This spell is cast upon two creatures who make an arrangement that cannot be broken. This can range from anything as simple as a business dealing and as serious as a vengeance pact. The only way of removing it is by utilizing a wish spell. If the pact is broken the one who broke the pact takes 20d12 necrotic damage and their maximum hit points is reduced by that damage. If this damage brings them to 0 they die and can only be resurrected by true resurrect or wish.