Skyler is prepared, sort of. He's never been one to overthink a fight, but the woman had taken him by surprise and it was taking a moment for his brain to keep up with the rest of his body - yes, lady, knife, gash on his arm that is bubbling up with blood, ok, he can still do this. When she moves in to swing again, he raises both arms in the same move as before. This time, one of his hands has another Spark charged up around it. He's aiming to either knock the knife out of her hand or get close enough to grab onto her arm with his charged hand. He knows that contact with the light causes things to break, but truthfully, he's never used it on another person. No time to really think about that, though!