I was thinking Shamanism or Druidism, but neither quite fit.
https://en.wikipedia.org/wiki/Tengrism
I'd probably use Shamanism for simplicity. If you don't care for that, look at the Sioux tradition from Street Grimoire.
Yeah use Shamanism as a template and swap spirit of Man for Guidance spirit to represent Ancestor spirits. Not sure about favored spells and powers though.
Powered by Invision Power Board (http://www.invisionboard.com)
© Invision Power Services (http://www.invisionpower.com)