User blog comment:IamJakuhoRaikoben/Sorcerer Magazine, Issue 45: September 2015/@comment-94.71.39.253-20151004062152

Yall are forgetting that it's supposed to be an all-out battle, meaning that if Wendy has Dragon Force, then Lucy is allowed to have CSK by breaking another golden key. No matter how you twist it Lucy can't lose in an all-out battle. The winner is Lucy all the way.