"I browsed through the school history of the Sun Moon Royal Soul Engineering Academy in my spare time. It seems they once hunted a top-tier Soul Beast like the Silver Dragon. While treasures like dragon bones and dragon blood are hard to come by, they should still be able to get some dragon scales."
"On top of that, rare metals used for making top-tier Rank 9 Soul Tools, such as purple gold copper, heavenly spirit silver, and nether crystal, are also quite good. But Big Brother, don't rush to lay your bottom line on the table. First ask Jing Hongchen for Rank 9 Soul Tools, and then lower the price step by step."
"Right, it's best to first let Hall Master Jing fire the Tight-Back Piercing Flower Crossbow Cannon once, and then make him trigger the self-destruct mechanism inside it. The number one taboo when negotiating prices is leaking your bottom price, and the second taboo is failing to keep a calm mind and letting others see through your clues."
Chapter 538