Dark Shiva has kicked my butt a fair few times... but i haven't killed everything or owned the monster arena yet (because Thu'ban is getting in the way). I've never died against a boss because i do the whole "must grow 50 sphgere levels each before boss!" that most people frown upon.
But Ifrit gave me a hard time, that was before i had any break HP limit things, and some of the monster arena things gave me a bit of gip, but other than that, not really. I tend to reset anyways if i get my butt kicked...or just before![]()