After three battles in the Forest of Bones, Yan Qing had gained a thorough understanding of how difficult it was to obtain Calamity Karma.
Never mind how difficult it was to challenge opponents above one's level. Just finding the "correct method" to free an Avici Sinner was enough to leave Yan Qing stumped. Take the Suppressor of Three Mountains secret realm, for example. Yan Qing had run it nearly a hundred times, testing many different tokens along the way, yet he had never once activated a Karma bar.
In the end, the Karma bar mechanic was simply too vague. Take the Forest of Bones, for example: Did it require a Buddhist token, a token related to Buddhist legends, or a token that had killed a Buddhist disciple? Who knew? In any case, Seven Steps Buddha Recitation happened to qualify.
If this had been before the transmigration, countless players would surely have analyzed strategies on the forums. But in this era, when aristocratic clans kept their secrets to themselves and high-level Heralds were scarce, Yan Qing could only rely on his wits and slowly test his luck to obtain Calamity Karma.
The reason Yan Qing had hesitated over Bunny Heroine's third advancement was also because the Life-Slaying Herald specialized in PvP and was inferior to the other two classes when it came to clearing secret realms. And clearing secret realms was Yan Qing's main path of development.
That was only the difficulty of obtaining Calamity Karma. The consequences of obtaining it had yet to be mentioned.
So when he discovered Si Wuxie's Calamity relic, Yan Qing had immediately decided to take it. Even if it meant handing over Bingzi Jiaolin, changing class to Life-Slaying Herald, absorbing Heaven and Earth Fiend, and mincing the Three Great Protectors into meat paste, he would