So I just started playing this game, seems pretty fun, this will be my 3rd play through of a final fantasy game, first was of course, 7, then 8, now 5. Anyway, i'm at Siren, right after the ship graveyard, and I can't seem to kill her. I had the pink haired girl take the white mage job and she got to level 2 with it, but she still doesn't have any magic learned. How exactly do you learn magic? And, wouldn't giving an elixer to Siren while she's undead kill her? I tried, but it didn't work. No spoilers please.