Human sacrifice is something exceptionally negative and has no place in Satanism. It is a very parasitic form of "magic" that basically relies on draining the life force of someone else to use it in a magical working. It also uses the energies of pain and fear raised during the act for the working. It is heavily connected with reptillians and their enemy programs. Their nature is parasitic at the core, and they require external energies in order to further their agendas. This is why human blood sacrifice was spoken about extensively in the bible.
Almost every single culture or person that has engaged in extreme blood sacrifice in rituals have reported contact with reptilian and / or grey beings, such as the Aztecs. Other examples are more recent individual practitioners like Aleister Crowley, who used enemy witchcraft and relied a lot on parasitic blood magic. After going into a trance and drawing the beings he communed with, he drew an alien grey. The exact same thing happened with a man in South Africa, called Credo Mutwa. He also spoke a lot about being coerced into using blood magic, and he stated that the beings who demanded this were reptilian. He even made paintings of them.
In addition to human sacrifice mentioned in the xian bible, muslim quran as well as other jewish texts, they have used huamn blood sacrifice throughout the ages to further their agenda and feed their programs with energy. A huge example of this is what happened during Medieval times and specifically, the Inquisition. Hundreds and thousands of Pagan people were brutally slaughtered in the name of the jewish "god". This energy of the fear and extreme pain and suffering was harvested to further the spread of their programs.
In some areas, Pagan priesthood were brutally slaughtered in their own Temples and sacred places, and then the enemy built their own churches over these and continued to harvest the energy. This happened a lot in India when it was invaded by islam.
We do not condone parasitic "magic" here and it is not something that is of Satan and the Gods. Satan has given us the knowledge required to raise our own internal bio-electricity and open our Souls, so we are using our own life force when doing Withchcraft instead of having to rely on external energy sources.
When I asked about this, it was explained to me that parasitic magic such as human sacrifice has an extreme negative impact at the Soul level that will last lifetimes. It ties the practitioner in to very negative energies that will actually start to degrade the Soul to the point where the Soul becomes parasitic itself by nature and can't function properly on it's own. That is why many people who use ugly practices like this invite all sorts of disaster into their lives, ranging form extreme bad luck to disease and insanity. It's really something horrible.