"Then don't use it like a hammer," Darcy snarks back.

Another parry, this one a bit more practiced.

"You feel how much easier that was? Physics lesson; how hard something hits is based on how heavy it is and how fast it's moving. A sword is pretty light, so you need to make it move fast for it to hit hard. That comes from technique."

Speaking of, she demonstrates with a sweeping blow that transfers the momentum of the parry into a strike back at him.