User blog comment:Ultraprime2/Fairy Tail Wikia Podcast 20/6/2014/@comment-7418318-20140621120241

There was this one armour she used to tunnel Kyouka through Cube and make the hole through which Fairy Tail invaded. It was only shown in maybe three frames, though...

I think the Twin Dragons wanted to ask Erza some questions about Minerva, but then arrived in a levelled (or partially levelled) Magnolia and just followed the trail of destruction until they arrived at Plutogrim's crashsite.