User blog comment:IamJakuhoRaikoben/Sorcerer Magazine, Issue 31: July 2014/@comment-24066070-20140805103247/@comment-24066070-20140806083759

Then the only possible things I can think of are:

- Gildarts' Crash Magic

- CSK's Galaxia Blade

- Alegria (the spell, not the chapter)

If I gotta chose between them, I'd say Alegria is the most likely.