Antonin handed out return portkeys to his little group before using the provided portkey to go to where he would wait for the battle to start.
"Antonin's Rules of Combat," he said to Andromeda, "First Rule; come home alive. Stay behind Morag and I, keep us from getting flanked if you can, and don't get in over your head."
He loosened his swords in their scabbards, and took a comfortable stance to see what developed.