Before Bai Mo, the reason why he could openly challenge Nangong Lie was because there were no restrictions on the time and methods when challenging. Those who wanted to compete for the positions of Top Ten Experts could use all kinds of unscrupulous means, assassinations, poisoning, etc. But now, there was no chance of using them in the arena.
One of the top ten exponents today, the seventh-ranked Fang Jinghe, was a master at using poison. He was able to climb into the Top Ten that year, because using a large amount of poison, he poisoned a number of participants before the selection, including one of the Top Ten exponents at that time and killed him, giving himself an opportunity to ascend the ranks.
