I confess to being almost in tears by the time I finished Brayflox the first time. It is a huge step up in difficulty as a healer. Something I didn't realize until the Titan fight is that I had my graphics settings up too high. I have a really nice computer, but turning down the graphics made the fight soooooo much easier.

You don't have regen for Brayflox, but you do have Stoneskin. It can be a huge mana sink to try to keep up, but I put it on everyone before the fight begins. If there's a lull in the fight and I'm doing okay on MP, I'll throw it up on a DD to mitigate some damage later on.