Board Thread:Questions and Answers/@comment-61.94.244.144-20160627233256/@comment-24356739-20160628020807

1) Keeping 1 or 2 oodachi in the team would help, but you still need to depend on RNG and hope they can bring all enemies down before 2nd round of attack.

2) KBC level range is triggered according to the highest leveled sword in your party, not according to maps, read Kebiishi for more details. The only difference would be in Era 6 where KBC will get slight disadvantage due to the night battle map. Read Combat Mechanism for battlefields condition.

3) There are many ways around this, depending on players' preferences:
 * 1) Keep them as lv1 and wait for more new swords to join up or form new low leveled party with other duplicate spare swords.
 * 2) Pair up new sword with oodachis/naginata that can clear the map in one or several swipes at non-kbc maps. Put low leveled duplicate swords to pull down the level average.
 * 3) Put Lv1 along with lv99 team straight into high level maps (kbc or not), but expect a lot of troop lost

I think there are more ways perhaps wait for other's reply on this.