used an explosion of power just now without using any energy.Lu Cheng naturally knew this. A gunpowder barrel is a consumable card, not a spell card, and not even a scroll-like one. It doesn't require...age of some benefits. That way, our three families can work together easily and stay unaffected by the turmoil."But Lu Cheng shook his head. He did this because he had discussed it with Old Jia under...