Universe One

Universe One (ユニバースワン Yunibāsu Wan) is a World Reconstruction Magic Spell.

Description
From what has been shown of this Spell, it can cause the entire country of Fiore to break out in a bright light, which Irene Belserion herself calls this Magic "of a new era" one that hasn't been possessed in the last 400 years. This spell is also needs time to prepare, being that it can affect the entire country as well as something to be able to use against someone of Acnologia's caliber.