User blog comment:IamJakuhoRaikoben/Chapter 376: Wendy vs. Ezel, Review./@comment-4489126-20140320183636/@comment-1776824-20140321001841

Aha nah, Michello even described it as a Magic Pulse Bomb, and Ezel even went further and said it uses the Eternano it radiates to destroy the ability to use magic. Think of it as dropping a pebble in a still lake. When it hits the surface, it creates a ripple effect. The continent is like the still lake and Face is like the pebble. When Face is activated, it won't do anything if you try to shut it down or deactivate it afterward, because you already dropped the "pebble" into the "lake", which is what we're led to believe is how it works.