Talk:Renewed Eternal Chronos/@comment-124.190.152.184-20140527070528/@comment-24850617-20140527073830

well, if they are only at A rank they probably wouldn't have the HP required to survive multiple hits from the combos of the various units at the boss fight.

If you don't start evolving your spirits, you'll miss out on the higher end event spirits. Of course if you purchase crystals, then it's no big deal, but if not then you miss out on some strong spirits, at least until they get revisited.