Board Thread:Event Discussion/@comment-9497110-20130610162626/@comment-9505008-20130610164150

The change you're talking about is that you need to spend at least 30 Spirits to Attack. This was implemented before EG5, yet such changes were not in effect during the event. As such, it is difficult to say whether the "rumour" of 6 min Kotetsu method is true or not. If it were true, the best method would be to farm 5 Wind Weasel and max it, both his skill and his level.