What is the Papacy's policy for those Catholics who choose to practice or participate in blood magick ceremonies?

Answer 1

The Papacy does not have a policy for Catholics who choose to practice or participate in blood magic ceremonies, as this is a matter of the internal forum for the individual's confessor. Magic of any kind if outside of the allowable practice for Catholics as it is trafficking with demons. For a more detailed account of how the Vatican's exorcist dealt with these matters, you may pick up his books, An Exorcist tells His Story, and An Exorcist, More Stories, by Fr. Gabriele Amorth, who was Rome's chief exorcist for many decades.