Wait..... :D we had a conversation about this a few pages back....so the swords are being controlled by magic right? If so Marcus nullify would cancel the magic around it and cause it to become a regular sword and nothing can defy gravity so without the help of magic the swords Marcus came in contact with would fall flat on the ground instead of standing straight up on its sharp side,but if magic is not being used on the swords then I'm gonna have to edit my post.