Okay the only ones I’ve known to physically raise the dead and they still do it now, are those who work Voudon in Haiti.
This is known as “The Haitan Zombie” the main thing that makes it work is a elixir/powder that they use.
It is combination of roots, herbs, psychedelic drugs and the main ingredient is tetrodotoxin which they take from the pufferfish.
The science behind is that this lowers the heart rate to a point where most individuals would assume that the individual is dead.
These individuals are later buried, afterwards they collect the body and as the target is returning to consciousness. They begin their ritual where they will take them to remote locations and begin ceremonies and rites upon the target.
The target was at the brink of death and now when awakened are now mindless, subservient and obedient slave-like zombies.
Many of the targets are forced to work and do extreme labor, it is reported that they do not eat nor do they sleep. They instead cover them when everyone else is asleep, then take off the “sheet” and make them work again.
This is a common thing in Haiti, I know off many other places and individuals that have been rumoured of such feats. For example Tantrics have been rumoured to make dead bodies the technique varies, however there is a certain type of yoga called it was said that a Yogi used this to bring a recently deceased back to life.
Of course there are other methods and they have different approaches and have different outcomes. Whether you create zombies, raise the dead from their graves or reanimate/bring to life the dead. There are different techniques something so intense and difficult would take loads of time, dedication, devotion and sacrifice to learn.
Do I think it’s possible ?.
Yes I do.
Do I think it’s worth the amount of time and effort ?.
For me personally no, I don’t see a beneficial application for this in my life.
All depends on your preference and what path you want to take, if it’s necromancy your looking at. I’d suggest entities like Az Jahi, Astwihad, The Druj Nasu. These are all ancient dark Persian necromantic entities, however they are intense and are forces to be reckoned with.
I hope this helps.