The line "In game terms, Conan is a sorcerer!" from Ron Edwards' Sorcerer & Sword hurt my soul when I initially read it. And I still don't agree with it, BUT that game (I.e. Sorcerer) could work for you. Specifically bullet points 1, 1a, 1b, 1c, and, to a lesser degree, 3. I'd pick up the core...