Coupe Compatissante

During the spell's duration, all of the subject's attacks (weapons, spells, psionic powers, etc.) are prevented from being fatal.

Whenever damage you cause would bring your opponent to less than -1 hit points, the opponent's hit points will become exactly -1. The opponent is not considered stabilized and will continue to lose 1 hit point per round as normal. This extends to death effects and all other effects that instantly slay a target, but not to other harmful effects such as petrification or polymorph.

For example, if a wizard under the effects of this spell unleashed a maximized fireball on 3 enemies with 12, 30, and 70 hit points left, they would suffer 13, 31, and 60 points of damage respectively.

Once incapacitated, the subject may do additional damage or make a coup de grace attack, but to do so must succeed on a Will save versus the spell's DC. Failure means the subject cannot bear to attack the harmless opponent.