Okay, so, my GM may be an ass. So here's the setup...
Epic-8 campaign (For those unfamiliar, level-capped at 8, continuing XP grants one extra feat per "eLevel")
Final boss of the campaign? The NORN. See previous statement about the GM being an ass.
There is a silver lining here. We have huge amounts of resources (we have a kingdom behind us), 9 months to plan, and full knowledge of her abilities. We may also have a bit of plot assistance negating an ability or two (like that +10 insight bonus if we can blind her view of fate), but the big issue here is how to keep her from killing us all, since Death Ward got nerfed into oblivion in Pathfinder.
Any recommendations on horribly cheap/broken/etc things we might be able to get our hands on? Immunity to death effects would be the priority here, but I can't find ANYTHING in Pathfinder that grants this, even temporarily.
Edit: Party would be Summoner, Ninja, Inquisitor, Cavalier, Cleric; with access to support from Sorcerer, Witch, Paladin, and Gunslinger.
We may also be able to cheat the level cap up to 10 if that would make a significant difference...