Talk:Underground Treasure Chest 6/@comment-113.190.140.48-20161023044433/@comment-30129838-20161023061400

I would not bring any Yari at all to this event. I have 2 Yari (Otegine, Tonbokiri) both at 99 and I still wouldn't bring them because of their insanely high repair cost.

If you are struggling with your resources, try having a look at the expeditions page to make sure you are doing the most time-efficient expeditions for the resources that you need.

Secondly, try to switch to a team that can utilise long-ranged troops, as they can kill the Yari before they can even attack. This means, past floor 80, using a mix of Rarity 2 and Rarity 3 Uchigatanas, along with Kiwame Tantous if you have them, all equipped with long-ranged troops will be the best resource-friendly option.

You still have time left, so you can just level your swords outside of the event while gathering resources from Expeditions and Dismantling spare swords you get at the Forge. Good luck and don't give up!