I'm trying to beat Cid Raines in Final Fantasy 13. He's the boss in the Fifth Ark. I've been really struggling to get a good strategy around his attacks, without much success.
Usually, I sentry myself until I get all of the upgrades, attack him till I need healed, then heal myself. After that, he typically is guarding himself, making himself a real pain to attack.
What can I do to beat him? Thanks!

