Here some impressions on two of the decks above (Golem and Pain):
At the beginning some words to the Pain-Deck:
I played 6 games with it yesterday with my smurf on Silver. I had 5 wins and one loss. The loss was most probably completely my fault because I totally misplayed turn 2 and turn 3 (as player 1). OK - Silver isn't proved to say that much about a deck. But what I can talk about is of the feeling I had compared to the decks I played in the past in general and to the Golem deck.
The deck felt very consistent, which is no wonder with 3-drops only. While the winrate seems to be absolutely good I have to say that the matches I won mostly where hard fights. When to heal up Vaath is a critical decision because you need some board control at this point that you most probably lose the turn you use Earth Sphere.
For me the deck seems to be a good "template" for a pretty standard Midrange deck with thrown in Kujatas and Juggernauts FTW. Since there is no Meta atm we'll have to wait how it will work in the long run.
I played two games in Silver and about 12 in Gold with my main. Conclusion: Nuts!
Prepare to get all the hate of the community for this deck!
I had one disconnect of the opponent right after I won the game (in the statistics it had the status "processing" when I went to bed) and one loss. This deck is too good not to be nerfed by CPG, that's my believe (but read the last paragraph - to relativise). Juggie will be hit by the hammer. Not that he neccessarily deserves it. (There where players that handled him pretty nice and - hey - he is 8 Mana, and that's a lot in this game!) But he will get all the hate because of his impressive egg-output and we all know how CPG handles the cards the community is whining about.
The deck is pretty simple to play: Stay on curve while ramping as fast as you can. Prefered sequence of cards as P1: T1 Celebrant, T2 Sister, T3 Lavaslasher. I had 2 concedes right after this sequence of cards.
Boulder Breacher is a card that seems to be designed especially for us (like Funsteel). Play it the way you can go face with it the turn after. A 5/5 is a thread by itself. Going face with 1 or 2 Minions + Vaath the turn Boulder Breacher is played and getting no damage is fantastic even if it has kinda anti-synergy with our beloved Sister.
I wasn't exactly happy with Celebrant. While she (he? it?) is sooo helpful getting out a Slasher turn 3 (playing her as P1T1) you almost always want to replace her later on. It's kinda same with the Golem Metallurgists. They help ramping - which is fine. But they don't stack and they don't do self-damage - which is absolutely wanted. So Kujata is almost always the better play.
That said I most probably wouldn't touch the Celebrants but take out one Metallurgist and maybe (not shure about that) one Juggernaut for 2 threads of your choice. Claws, Drogon, Funsteel? Or Chrysalis for the extra hate? It's up to you. But the deck - as it is listed above - is strong without changes.
What's important to know: Yesterday there where many players that did not have the new cards or they didn't use them. I think it will get harder over time and when some kind of Meta is settling. At the moment there's kinda chaos. But we have a good spot in this chaos - and that's exactly what I expect from the Church of Makantor!