Particularly how would I even contact a witch or warlock if I, say, wanted to contact the dead or speak with other spirits? I guess I'm asking because of the story in the old testament "The witch of Endor" where a spirit is brought back from the dead to counsel Saul. What kind of traits did a witch or warlock have? How would I even know? What kind of magical items would they use? Were there any spells or incantations that were common? I'm trying not to be too broad, so I will stop there.