Shaman is very much a problem. The word shaman is currently used to describe religious practitioners all over the world . . . and that's the problem. It takes a diversity of religious practices and subsumes them under one word, one concept. A concept that social scientists increasingly realize creates false stereotypes. The word comes from Siberian indigenous peoples, whose concept has been appropriated in a very colonial manner by anthropologists, and then spread to fantasy literature and western New Age practices. It does not belong in the game, and I'm glad WotC has not used the term in 5E, and I'm glad they are considering junking it in the Magic card game.