Yep, probably around there, maybe a little less, i always did find until around maybe halfway or less, then it would spam me with instant death attacks, sometimes it did them 3 times in a row killing all my party.
What happened with me was that. First time I died then I trained a bit. Then I spent half an hour fighting the first form and then I found out there was a second form I was like OMMGG and then I died. Then straight after I did the side quests to get good weapons and armour for my team. Then I beat her.
I defeated her in my first try. I'm probably overlvld, lvl 75. I grinded so much that I am tired doing sidequest for their ultimate weapons. That reminds me, anyone care to tell me what's the background story of Morte? spoilers pls.
The boss was pretty OK i guess. I died once(lvl 62). Oh and where are these side quests you guys are talking about? Couldn't you just read it in the game?
On an unrelated note, just started to watch the Sands of Destruction Anime, Kyrie's dub voice in the anime is so horribly girly sounding, it's really hard to take this dude seriously, at least in the game it was somewhat of a guy voice.