I've been really frustrated with this stupid Battle Power system, not gonna lie. For one, it's such a dumb way to pad out the length of NGS and second of all, it is way too difficult/time consuming to build it up. Because of this, I am unable to continue the story. I've just been running around doing all kinds of side quests and upgrading my gear hoping that'll do something, but it barely increases anything no matter what I do. Worst of all, I had my battle power reduced. Currently I need to rise my BP to 1100, and I had it like 1060 or so. I went and did a tower and my BP went all the way down to 810, so now I feel like I wasted my time.