So yes, I've read that there's apparently some special puzzle/trick to beating him, but I'll be darned if I can find out what it is. He basically just *obliterates* me with Spiral Moon, doing 999 on his second cast. I've tried using Counters but those seem to do nothing either. I just basically insta-lose the moment he gets to Spiral Moon #2.
This...Isn't fun. This is frustrating.