QUOTE(Bunker Buster @ Apr 1 2012, 03:01)

100% foolproof strategy for not dying within 3 turns
Well, the "not dying strategy" is actually just SoL turn 1 followed by R-II turn 2. Everyone and their pet giant knows that. And it can be done by anyone level 100+, even without IA.
All the rest is accessory: you may need CureI-II if they hit too hard from the get go, Protection, SV or Haste if they're giving you a breather.
High difficulty battles are just a matter of planning and being prepared. After that it's the same old routine, over and over.