My initial intention was to attempt the battle using an Attacker with lowered stats* since I wanted to see how a job with just 4 skill panel pages would fare against the boss. I have since discovered that this wasn’t possible as the game automatically restores the stats to maximum once you exit the deck menu. >_<
While I do have jobs that don’t have all 8 skill panel pages completed, they’re also ones that don’t have strong single target Earth cards. =__= This is what happens when you focus on developing ones that destroy regular mobs instead of bosses.
At any rate, this should give global players an idea of the amount of HP the boss has. ^^; The two Earth cards used will most likely not be available any time soon unless Square Enix decides to hold the FFXIII event earlier.
*Every job has a corresponding Medal that can be purchased from the Item Shop. The item allows a job to keep its maximum stats when the player selects any of its previous evolutions.