Stephanie now also uses a collapsible bo staff , similar to the one that Tim Drake uses ; it is implied that she had been trained by Cassandra Cain in using it before assuming the Batgirl mantle .
The suit also allows Barbara to monitor Stephanie 's vital signs .
Stephanie now also uses a collapsible bo staff , similar to the one that Tim Drake uses ; it is implied that Stephanie had been trained by Cassandra Cain in using it before assuming the Batgirl mantle .
The suit also allows Barbara to monitor Stephanie 's vital signs .