After breaking the wall and the barrier, Weiss had specifically targetted all the superior grade armoured puppets and had attracted their attention toward her.
This was not particularly a hard thing to do as these puppets had a very limited Intelligence and they went after anyone who had attacked them first.
So Weiss just needed to use her speed and hit all the superior grade puppets. That was enough to make all of those puppets to follow her.
Next Weiss brought them to the opposite direction from where Elise and Peria were fighting. She was making sure that these puppets were not going to interfere with their fights at all.
Even though Elise would be capable of defeating these puppets in one on one battle, even she would be in trouble if three or more of these attacked her together. As for Peria, even facing one would put her life in considerable danger.
