Guanyin's Tear (#1) that used to break through the defense of the Angel God Qian Renxue and pierce her heart.
The Bodhi Blood that was used to kill the Deep Sea Demonic Whale king.
So since a wuxia marital arts world weapons can become godlike in Douluo Dalu world. Could skills or weapons from Star Rail game or Genshin Impact be introduced here.
I had ideas like there are abilities of Blade(Star Rail) and Yanqing( Star Rail)
can be used by Chen Xin, Jade(Star Rail) used by Du Gu Yan, Fu Xuan( Star Rail) could be used by Ning Rongrong, Gallagher( Star Rail) has ability that can used by Zhuqing.