The number one important rule of fighting any FFXIII boss: Never lose your chain ever! This means you should always have at least one character on the offensive. It's good to keep a commando around when you're healing/buffing. Sometimes you may need to give that up and use a SEN/MED/MED or even MED/MED/MED combination, but should that happen be sure to change Paradigms before your chain falls down too low. (You may find yourself changing them literally every two seconds, but that's okay.) You probably figured this out already, but the best way to build a chain is to start it off with a Commando. Commandos build chains very, very, slowly, but they will stabilize it so it will drop slowly. Then you switch to a full Ravager party! Ravagers build up the chain very quickly! Even if you can't stagger an enemy, an increased chain means increased damage, so it's still worth your while.


I don't remember their movesets very well, so I can't give you more specific help than that