Wei Wuxian doesn't bother to engage the other extremists, instead just marking them each with the talisman that will draw the dead to them. It's a cruel way to do things but if he is just going to keep encountering people who can heal from the other attacks then it is his only option.

He knows that if the dead start to attack then it will break the binding talismans that are on Eli. He also isn't sure that they will even be enough to kill him but it is all he has left.

He pulls chenqing from his waistband and stares at it sadly. This will be the last tune he ever plays, not believing that he will be so lucky as to return from the dead twice. He brings the flute to his lips and starts to play. The WangXian tune filling the sky as a way to block out the sounds of the dead as they attack their prey. Chenqing is how he controls spirits and draws all the dead who can hear it in their direction along with the ones that have reached Eli.