Hearthpwn

Hi guys, I've played this deck from rank 5 to legend, and found it quite consistent vs most of the decks so i'm sharing this to your guys:

Earth Shock - 2 x silence is necessary in the current meta.
Whirling Zap-o-matic - really nice two drop for you to go aggressive at early stage if opponent is control. (consider two Whirling Zap-o-matic at turn 2 and turn 3 Rockbiter Weapon+[card]Flametongue Totem[/card] win!)
Rockbiter Weapon, [card]Flametongue Totem[/card], Powermace - sync well with your mech cards.
Big Game Hunter - help you vs handlock and control decks. You can play Hex without worrying you are lacking cards to duel with big minions later.
Mana Tide Totem, Azure Drake, Neptulon - source for card draws. Having four sources reduce the chance for us to run out of cards.

strategy:
Keep aggro cards Whirling Zap-o-matic  vs control decks.
Keep one mana spells [card]Earth Shock[/card] ,[card]Rockbiter Weapon[/card] vs aggro decks. Not good to keep Flametongue Totem if you don't have defensive minions in hand.

Always keep Annoy-o-Tron at start if you have one.
Keep one Powermace at start is always a good choice.
A 3/4 [card]Annoy-o-Tron[/card] or a 4/7 [card]Arcane Nullifier X-21[/card] at turn 4 is hard to duel with for aggro decks, where a 5/4 Whirling Zap-o-matic is always a pain in the ass for control decks.

Do not play Mana Tide Totem without Taunt protection in most situations.

Dr. Boom is a good choice to play before the turn you want to burst on enemy's face:
e.g. Dr. Boom -> Al'Akir the Windlord+Rockbiter Weapon/Flametongue Totem, or Fire Elemental+Crackle

Neptulon is a nice card to fill your hand with aggressive murlocs. Yet it's not good to play at round 7 because of the 3 overload. It's best to play when you already have board advantage or you don't have better card choices.

card not to use/alternative cards:
Feral Spirit - there are too many 3 attack low cost minions, and feral spirit is just not good enough to stop the mech aggro/deathrattle aggro waves. Besides, we already have five taunts in the deck.

Doomhammer - is a good card choice replacing Al'Akir the Windlord

Big Game Hunter - consider replace it with another Antique Healbot if you face a lot zoo warlocks/hunters in your rank. One heal is definitely not enough if you don't have luck to draw it.

Feel free to leave any comment/question!