Board Thread:Questions and Answers/@comment-24678498-20150803190233/@comment-26847050-20150805134903

I may not be the best person to be giving any advice (I frequently just wing it myself), but I'll see if I can be of any help.

I would suggest leveling all your swords a little more before attempting world 5. I'm recommending at least lvl50-60 tantou/wakizashi and lvl40-50 rarity-3 uchigatana/tachi/oodachi. My team consisted of 1 uchigatana, 1 wakizashi and 4 tachi, all around lvl50-60 when I first cleared 5-1, and they brought me all the way to 5-4.

However, be warned that even at lvl50-60 your tantou/wakizashi may still frequently lose troops regardless of troop rarity (since no matter what is said about RNG, those enemies just seem to love targeting the tantou/wakizashis' troops).