To piggyback on what Gold has already said about magic, this excerpt from Quora is relevant:

[quote]
[i]https://www.quora.com/How-would-you-describe-Magic-in-Robert-E-Howards-Conan-Universe-compared-to-how-its-portrayed-in-Tolkiens-works-and-or-the-Warcraft-Universe[/i]

Low magic really and being driven on a more ritual level. Magic in Conan is reaching it’s end considering, with only a few isolated civilizations and cultures actively using it. Beyond that only a selective few mortals, handful of magical beings and the gods themselves have any true magic with them. The major kingdoms in the Conan world have their mages and wise men, yet most use alchemy and other tricky then true magic.

The best individual who is the most powerful human mage would be Thoth Amon. He’s lived for hundreds of years thanks to his knowledge and use of dark rituals to extend his life and maintain his health. He and Conan had face each other over time, yet amusingly never face to face. The thing is Thoth is a cunning individual who understands how to properly use his power, by never putting himself into an exposed position. His strength lies in rituals and creatures he either summons or creates to do his bidding. Even then he has political influence which his magical power grants him.
[/quote]

This isn't strictly a Conan RP, but given that it's a big inspiration, it helps to know a little about the books' portrayal.