So far the only thing that has killed me is The Mandragoas. I've gotten close twice but ran out of MP and phoenix downs. The problem with this boss is there are five of them, all with around 9,000 HP. 9,000 HP isn't very much but they are hard to hit. There is also the problem with MP. You have to use Dispel on all of them or they will be hitting you like crazy. I used Mateus three times on them but they scatter so when he does his move it only hits two of them. MP is everything in this fight. I only have 2 phoenix downs and once they run out I have to use MP for Raise and MP for Curaga. On top of that they heal eachother which makes it even more difficult. Ethers don't bring back enough MP to do much damage. Regen and Haste help alot but they cost MP too.

These little annoying guys are ridiculously hard!