Comments of chapter undefined of Vampire Cultivator

That's true, but the more powerful a cultivator is, the larger an effect their blood will have, meaning they will require less of it. At the very least, that will be the case for the weaker vampires. They will need less blood to increase their cultivation when compared to the amount Xue Yang had to use at the start. But there will be some more unique techniques, and using blood for attacks will be primarily a Xue Yang thing.