We All Must Die

Choose up to 3 creatures within range to be affected. For the duration, the chosen creatures cannot be targeted by healing spells or abilities, or spells or abilities which grant temporary hitpoints. Spells or abilities which grant an additional bonus to rolls (such as bless or bardic inspiration) no longer apply to saving throws (including death saving throws). If the caster is reduced to 0 hitpoints with this spell active, they immediately take a death saving throw failure for each target still alive (potentially killing the caster instantly), If any targets remain alive when the spell duration has ended, the caster takes a level of exhaustion for each target still living. Once the spell is cast, the range of the effect is unlimited. A successful dispel magic or greater restoration targeted on an affected creature would remove the effect. If this happens, the caster takes levels of exhaustion as if the spell duration ended, even if it is still active.