Suddenly there's a guy leaping through his fire, and Zuko pulls back his bending to keep from completely frying the guy. Even if it looks like he doesn't need to. Zuko knows very well how much damage he can do with his firebending. Though when this guy just unleashes the most lightning he's ever seen in his life, Zuko freezes, his jaw dropping.

It... eerily reminded him of Azula, but even she couldn't generate that much lightning at once. Zuko could only watch as the monsters fell all around them. Once it was done, he just stared until he found his voice.

"How did you do that?!"