User blog comment:IamJakuhoRaikoben/Sorcerer Magazine, Issue 45: September 2015/@comment-25693405-20151017042430/@comment-1776824-20151017051732

What do you mean Wendy can't use Dragon Force because Lucy doesn't have air spirits? Wendy can enter the mode whenever she wants. Whether there is high concentrations of Ethernano is irrelevant now as she has mastered Dragon Force.