She...took over an entire dungeon, used a demonic ritual to revive her fiance as an ahriman-thing, amassed a zombie/undead army, and tried to kill the savior of eorzea as one of the hardest-hitting dungeon bosses we've ever seen. (I remember wiping many times to red wedding with pugs when that dungeon was current)
Though I do wish the reasoning behind her undead fascination was explained a bit more. If we were talking about the Edda we encountered way back at level 20, and not the tamtara hard Edda, I could see where you were coming from. What happened to her to make her go so crazy and powerful...? She's one of the more interesting characters in this game for me.