First you drain their Lifespan, then you pollute them into an eerie slice. So far, the feedback is that this two-birds-one-stone method is totally workable.
And judging from the Tian Brothers' performance, you could even call it perfect!
Originally, as Cultivators, their HP bar was already pitifully low, in the most fragile "one hit from death" state, but the moment they were polluted into eerie beings, their HP bar instantly went back to full.
So Jiang Yuan got really curious: if he held back a little during slicing and didn't cut them to death, then after they got polluted and gained that undying, indestructible eerie trait, could they self-recover?
If you give them some food and drink so they can slowly refill their HP bar, you can totally find a suitable dungeon and set up a massive eerie farm!
