Kind of lame but Even Shaman was very powerful in wild. Probably had to thanks to Genn being a thing (and Blizz being not willing to nerf neither him nor Baku).
Wild even shaman is OP because of 4 mana 7-7, Thing from below, jade cards etc. not because of this card or 1 mana hero power
Sorry, but you are TOTALLY WRONG! Wild even Shaman is OP because of Flametongue-totem. Having your totem gain +2 attack is huge, and far more important than the fricking 4 mana 7/7; that when you would read the numbers on hsreplay, you would see that the winrate of this card is actually quite low in even shaman. No, this card is not really important in this deck.
I said it before: Even Shaman in Wild needed only one nerf, and that's Flametongue-Totem. This card allows your Totem Golem to hit for 5 damage, allowing it to destroy absolute everything up to 3 mana and most minions at 4 mana too. With 4 health it even often survived and allowing it to trade again. No longer being able to kill a Tar Creeper and having still a 5/1 minion (that probably also get healed through healing totem) is FAR FAR more important than a 4 mana 7/7. This nerf will affect Even Shaman heavily and i doubt that it's still king of the hill anymore.
Especially Zoo and Aggro-decks can now easily deal with Even Shaman; since they lack AoE and no longer be able to kill anything with their totems.
I mean, this pretty much kills Even Shaman in Standard (and possibly brings it down in WIld due to also affecting Thing from Below and few other important cases such as killing Doomsayers and the likes of it)
More importantly this finally opens up design space for shaman 1-drops.
I love how they still won't touch Barnes, but somehow Flametongue Totem is the problem? They're obviously targeting even shaman in wild, but Big Priest still has the highest played population on wild. Cheating out 8-10 mana minions on turn 4 or 3 with a coin is still ok though. Mulligan win rate when Barnes in hand is 80.3%, but let's nerf Flametongue Totem.