The auction for the "Poison of Thousand Severances" was not particularly intense.
This was within Fang Xi's expectations.
After all, poison as a means of attack is somewhat of a chicken rib to Immortal Cultivators—it's there but of little use.
Rare are the strange poisons that can volatilize, invisibly penetrate defensive spiritual shields, and erode the body's law.
Ordinary poisons need to be mixed with spiritual objects and ingested by Cultivators to be effective.
Take the "Poison of Thousand Severances" for example, if ingested directly, a human race Cultivator at the level of a Perfect Transcendent God might even lose his life!
But Immortal Cultivators are extremely cautious about what they consume, and it's unlikely the poison could be hidden to such an extent.