Shamanism is the art of gaining access to the supernatural world by bending one's consciousness through the use of psychoactive and psychedelic substances,
None are necessary, except maybe tools for cutting and storing herbs.
Energy and Method
Energy is raised by taking the substances in question. The substance will make the shaman nearly comatose and incapable of doing anything but performing the magick for a period of fifteen minutes per level of success in whichever skill or attribute roll is being used. During this entire time, however, the shaman may continually cast any one spell effect at that rank of success. The comatose effect cannot be cancelled before it has expired.