Lu Ye naturally wouldn't activate his Talent Tree here to draw power from the Earth Fire. After all, it would be quite inappropriate to do so when someone had kindly brought him here to forge array banners.
That would be like stealing someone's job.
The furnace quickly turned red-hot, and Veteran Bai tossed a metal ingot into it. At the same time, he tested Lu Ye, "What kind of materials do you generally choose for forging array banners and array bases?"
"You usually choose metals that are lightweight and sturdy, and at the same time, they must have a very high conductivity for spirit force. Beehive steel and black iron are the most commonly used materials. Additionally, if there is a need, demon beast hide can also be used to refine the banner surface..."
Lu Ye recounted the teachings of Bai Qian and spoke fluently.
Bai Qian nodded in satisfaction and asked a few more questions, to which Lu Ye quickly responded.