Talk:Iwatooshi/@comment-4975366-20170809143618/@comment-32572076-20170809161738

If your Iwatooshi is decently levelled, you can grind him in Regiment Battle and set him as leader (that is assuming that Kiwame Tantou would still be useful in night battles).

But if you're ready to lose few troops, I always train him at 4-4 until he could kill few enemies, then jump into 5-4. If he's useless there, return to 4-4 until level 70+.