I'd like to disagree with one part of your strategy, Wilder. You should in fact cast reflect on Sanctuary Keeper. By doing so, his Curaga, Protect, and Regen will help you instead of him. He'll only use reflect on you when he's badly hurt, then you can easily Dispel it quickly. Hastaga will truly aid your characters, and make sure you cast Bio on it at least once or twice. Oh, and for an easier battle make sure you have all your Aeons into Overdrive before the fight.