and remember i said froma fantasy setting(as this game is set ina fantasy world)
So, do you have any argument, that is as stupid as that?
Sorry, but you don't probably understand, how things get into fantasy in first place. Fantasy is STRONGLY INSPIRED by reality and real mythologies. Shakespear Hamlet would become classified as fantasy, if it would be written today. There are tons of stories with magical element. With undead. Have you ever heard about Vampires? Dracula? Is THAT fantasy?
What about one of founders of modern fantasy? J.R.R. Tolkien? It was created as modern mythology. Together with Silmalirion, it is basicaly artifical mythology.
And your argument, that you have come in contact only with fantasy, where it was like in W3? That is argument ad ignorantum. Because only thing, that is shows, is unvariety of fantasy settings you have came in contact.
And whole your response is stupid, if you have asked question "how lichdom works". As I said, it varies setting from setting and depends on, which one you pick.