Jsk Nonlethal Attacks

Sometimes you need or want to knock a creature out, instead of killing it. If you wish to knock a creature out, you must declare your intention before rolling to attack. If you reduce a creature to 0 hit points without declaring your intention to knock the creature out, then you will kill the creature outright.
 * If you declare that you want to knock a creature out, and fail to deal enough damage to reduce the creature's hit points to zero, then the damage is halved as you were intentionally holding back.
 * If you declare that you want to knock a creature out, and deal enough damage to reduce the creature's hit points to zero, then it falls unconscious and is stable, unless another condition would cause it not to be.