Talk:Recent Updates/@comment-9611915-20160721075105/@comment-24356739-20160721083536

From the ID numberings in the Character List, it can be safely deduced that everyone would have Kiwame upgrades for that empty slots after their own number.

As you can see, Era 7 has only 7 out of 10 stars difficulty shown, but it already requires Kiwame tantous for efficiently. We will eventually need other Kiwame sword types for future Era (Era 8, 9, etc) that would have 8 stars difficulty and above.

For Era 6, it was made with night battles mainly to balance the usefulness between sword types. Before Era 6, it was almost impossible to level Tantous and Wakizashis in Era 5, the only Era that has map without level cap limit. Players neglected Tantous and Wakizashis and prioritized more on Oodachis, Tachis and Uchigatanas (to the extend, Naginata and Yari). So when Era 6 were introduced, a lot of veteran players found themselves having to retrain a bunch of Tantous and Wakizashis as team Lv99 Tachis and Oodachis doesn't work anymore.