I'm working on a Cro-Magnon fantasy campaign, and I want to create a system of magic based around Animism and the Primitive Shamanism you'd find in such a setting. I take some issue with the default Primal magic system because it's a little too vague on how many magic keywords are available to players by default, and it seems to have far more utility and power than I'd like for a primitive setting.
I'm going for something that has utility, but also doesn't have any obvious advantage over being a skillmonkey or any other character archetype. I've got a shamanic divination system, which is basically just the Hacking system under a different skillset and with an animal sacrifice requirement, but what else can I do?
Anyone encountered a system I might be able to adapt to Genesys? Perhaps a GURPS Supplement or similar?