Because it was really hard to decide, Yan Qing didn't rush to choose a team skill right away.
Back in the day, this kind of issue would require a deep dive into forums for the tremendous wisdom of netizens, so Yan Qing felt he couldn't be too impulsive.
In other words, according to Yan Qing's own thoughts, Undying Heart is something he would absolutely not choose. It offers no help in terms of offense or defense, unless you possess a divine technique or talisman with a self-destruct function, allowing the skill to be maximized. But reality isn't a game; Undying Heart gives oneself a bit more chance to survive. Even if rarely used, it only needs to be useful once to pay off, and isn't much worse than other skills.
