It seems that their previous success has inspired Katie to change up her tactics, though past the surprise of the brick it seems the new tactic is to simply become extremely aggressive. That is to say, she's flickering forward in the moment Yelena drops into a crouch, leaping forward in an attempt to tackle her, claws outstretched and no consideration given for how much the collision might hurt both of them. That rattling, inhuman screech is back, too, more monster than woman. The attack is furious and animalistic, aiming to cause general harm rather than attacking with enough precision to prevent Yelena from arming herself.