Umm, but the atk/stats of the kamis are factored into your overall atk right? Go equip a Kami with low ATK power, then replace it with a Kami with higher ATK power. Your overall ATK stat changes on the MyPage stats right? So if each Kami gets an extra +3.6K ATK, and you have a fully decked team, what do you mean you won't get +18K with a full team. I don't follow your logic (or lack of it).