Hearthpwn

I grabbed this deck from Thijs' stream as my own attempt at building a elemental deck seemed to fail.

It turns out that we want a good balance between pro-active and re-active elementals.
Gyreworm is a big part of that, while I saw it too much like damage pushing card.
Thijs also incorporated the buffed Unbound Elemental, which I wasn't keen on because elemental shaman naturally has plenty of 3-drops. Yet because this minion can scale and has decent attack value now, people don't ignore it anymore and it get's value even when it is removed.
I also was pretty skeptical about including two Lightning Blooms and only 1 Lightning Bolt yet they are mainly clutch in enabling playing a 5 mana Golem on turn 7 with Kazakus, Golem Shaper. It also gives more reach when combined  with Instructor Fireheart.

Here are some data points from HSReplay: where the deck has a total win-rate in Diamond through legend of 49,9%.

I had a decent win-rate  of 64% in my 'climb to Diamond'.
, Link to Imgur

So I don't know yet if it is any good in Diamond but I did notice that I made quite the misplays because I was learning the deck and too tired to really think.