Furthermore, whatever route is preferable, Shaman has access to cards like Zentimo and Speaker Gidra, both of whom I think could work in a combo-y/tempo-y style build.
I do not currently see a viable build. Even ignoring the Gadgetzan package and using using Ancestral Knowledge (presumably in a Giant's build), I struggle to see a deck that is consistent and powerful enough.
I would like to see what other people think of these ideas.
In standard I'm excited for Instructor Fireheart - it's great combo'd with the forgotten Dwarven Archaeologist for a miracle spell shaman value generator or burn finisher. The package drops nicely into any spell shaman list;