The Flame of Purity is the enemy of all poison. Any poison before this flame becomes utterly useless. To Masters of poison, this flame is their nightmare. They rather die than seeing this flame.
This is because everyone who practises poison has a poison Dan inside of them. This Dan, once encounters the Flame of Purity, will melt away. This means they will no longer have a future with their practise and will become a handicap.
This is why Ta Ba Feng was so afraid when he saw the silver flame!
Everyone was stunned as their gazes fixated on the Flame of Purity. Their eyes were full of shock and everyone was looking at Ta Ba Feng with pity.
"Wow, how pitiful. He ran into the extremely rare Flame of Purity. What a coincidence."
"Yeah, the Flame of Purity is the enemy of poison. That is not an exaggeration. Ta Ba Feng sure is unlucky."