Hearthpwn

This is basically the deck I really wanted to make work since day 1 of the patch. Maybe I was having bad luck, but it just did not feel very good... worse yet, one match I got steamrolled by a demon seed warlock, of all things. He still did all the things, with the giants and the lifesteal and the taunts.

Anyway, perhaps its still worth trying again

I think it often comes down to whether or not you find some Wildfires in the early game.

I like the idea posted here about Deeprun Engineer though. Flexibility is often something people will overlook in a card, because at face value, it's a 2 mana 1/2... I'll definitely give it a try in my deck and see how it goes.

Cheers!

- 2x watchposts (bad lategame) for 2x Deeprun Engineer
> provides flexibility in all stages of the game;
> potion synergy
> standard mechs pool is pretty nice (8 in total): 2 rush, 2 taunt, 1 "snowball", 1 stabilization, 1 Giant.

Tempo - the "snowball" Replicat-o-tron cost-reduced to 3 means if they don't clear the engineer's unappealing 1/2 body it becomes a 3/3. Most of your early minions won't mind becoming 3/3s as well. You'll want to isolate Polkelt and the 8/8s (from the METAL MORDRESH party!!D) by playing a small body on the same turn, between them.
The other tempo option is amalgam - 4/5 taunt on turn 3 feels nice and safe (but not nearly as METAL as a mosh pit of 3/3s :D)

Value - Claw (draws minion &buffs by +3/+3); giant (vs big hand decks this is also a tempo pick)

board control: not finding your reckless apprentices and wildfires on time? Explosive Sheep has you covered! and it comes down on turn 3 due to the cost reduction from deeprun engineer.
Also remember: dirigible will cost 2 so you can corrupt it with any 3-cost card!

This is my preferred deck to have fun in Stormwind, as it is full of strategic choices and the games feel both fresh and pleasantly familiar. As for viability, it looks like it can win both fast and slow matchups if piloted well.