Shaman was the Talisman from Alpha Flight (1st series) #45-68.
Talisman I was an Aborigine hero.
As of Alpha Flight (3rd series) #12, there were two versions of Shaman running around -- a past version on Earth, and a present version on Plodex. One was killed on Earth in New Avengers (1st series) #16 but it wasn't clear which one. Five years later, Chaos War: Alpha Flight #1 established the original Alpha Flight returned from space before being killed by the Collective. The past versions were presumably restored to their proper place in history. Shaman was restored to life in Chaos War #5.