Shaman is the strongest class in the current META, and love it or hate it, this is the best Midrange Shaman Season 32 Nov 2016 list.
There are a few card tech choices you can change around. Barnes and Ragnaros instead of Bloodlust and a Fire Elemental is the other popular list. But because off a lot of other aggressive lists on ladder I prefer this list that curves out a little lower and is more reliable.
Shaman has been a problem for a while and I don’t see it changing any time soon. Cards like Spirit Claws, Thing from Below, and Maelstrom Portal are incredibly strong.