His sudden closeness makes Amelia an easy target, as being close to anyone, even in the heat of battle, makes her uncomfortable. The check to her shoulder causes her to stumble back and fall to the ground as the momentary shock begins to wear off. That's a little too close for her tastes, which means she needs to start paying more attention to what he's doing in anticipation of his next movements.

As he advances on her again, she pulls her blades close and tumbles to one side, rolling to her feet with ease. She readies her blades for whatever blow he tries to land next before turning the gauche over in her hands and trying to thrust the pommel into Mordred's stomach. It won't wound him, but if she can knock the air from his lungs, she can make it a more interesting fight.