The middle-aged man sighed slightly, his eyes showing no panic. In fact, he was secretly hoping this item would fail to sell, giving him a chance to snatch it up later.

"Bull, since when do auctions allow bartering? This is so unprofessional."

Chen Xun frowned slightly and sent a sound transmission to Black Bull, "Exchanging a five-hundred-year-old spiritual herb with depleted potency for a thousand-year-old one? That's like getting something for nothing."

"Moo!" Black Bull nodded in dissatisfaction. When it came to knowledge of spiritual herbs, it had never conceded to anyone. It was clearly damaged; only a fool would make such a trade.