It might have an adverse effect even. Casual has a connotation of being really easy which the normal difficulty is certainly not. I've not tried hard because I don't really care for the challenge but I assume it really is hard.
People might start complaining that casual is not really casual because you do have to prepare yourself well and have a solid understanding of the system.
I don't think dying has any consequence though. I've died a few times at the start when I tried to take up foes that were way beyond my stats. You just get warped back to the last point where the game saved.
What they should really patch though are the crashes. The game already crashed twice on me. Once during a fight and once when changing localities.
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