User blog comment:Sky-Dragoon-Twilight/Weisslogia and Skiadrum, Alive or Dead?/@comment-18654001-20141208200051/@comment-9595671-20141208202020

No that wouldn't have worked, remember when Wendy did it to call Zirconis' spirit? Zirconis himself said that due to the fact that he is a spirit, he can not physically harm them at all.

If Grandeeney had used Milky Way then Weisslogia and Skiadrum wouldn't have been able to destroy any Faces, and they each destroyed some.