You should also level up Lightning as a Ravager because she learns useful techniques such as elemental physical attacks (which will prove very valuable later on). And yeah, phoenix downs are a pain to buy (not that I ever bought any).After a few hours into the game, I have managed to play up to chapter three. At the begining it felt kind of awkward not being able to get the exp from battling monsters like in the previous FF titles, but later I learned that the character become stronger as more points are invested into their Crystalium.
What has to strike out to me the most about FFXIII would have to be the battle system. Never before have I seen the paradigm shift battle system. It allows me to change the tactic instantaneously; from going all-out-offensive to the defensive tactic when facing a stronger foe.
So far I'm utilizing Lighting as a Commando. I have yet to try experimenting her as the role of a Ravager. I have heard that she functions best as a Commando, so I will have her be focusing on that role for now.
P.S. Oh yeah, I also liked how everyone gets fully healed after every battle. It really saves the use of potion and phoenix down outside of battle.
I'm on chapter 8 now, yay (can't play very much though as I will be busy).