Raise Marguerite's favor to 100% with Duane to unlock the Mighty Sword spell in the Advanced tier, which cannot be learned in the Dreamworld.
Successfully complete the game on the Hard difficulty setting with Duane to unlock the Meteor spell in the Advanced tier, which cannot be learned in the Dreamworld. Successfully complete the game on the Hard difficulty setting with Kendal to unlock the Blizzard spell in the Advanced tier, which cannot be learned in the Dreamworld. Successfully complete the game on the Normal difficulty setting with Kendal or Regnier to unlock the Bless spell in the Advanced tier, which cannot be learned in the Dreamworld. Successfully complete the game with Celine to unlock Curian.