What is damage? Fundamentally, it is loss & all beings experience loss 相手's no exception, no matter what they say 相手's atks/defs/etc are cut, experiencing [Fundamental Loss], & 相手 feels, no—EMPATHIZES each loss This is such a profound ultimate that it affects even emotionless/mindless/omnipotent beings 相手 cannot bring a more profound loss to 自分, so all interactions simply don't affect 自分