Okay, so this is my walkthrough continued. Okay, you NEED to know this. You're forced to use magic on him. High level spells of any kind will chip away at his HP big time (one shot of the Fira spell shaved off 250 HP right away). Otherwise, Aero and Fire should be the primary spells of choice. The Giant Rat, like many bosses, attacks twice per turn (he'll usually couple a melee strike with a Fire spell) and can knock out one of your characters or more if you're not careful. Make sure to take this foe seriously, but don't fret too much either. THE END