Hearthpwn

The Brawl is almost finished, and it's a pity as I came up with this idea only today!
I found this deck SO FUN to play that I actually wanted to share it even if the Brawl will finish in a few hours just in the case there's even one only person that wants to try it. It's obviously a combo deck, but I guess it's rather versatile as there are games where you want to play more conservatively (like keeping your Mana Wyrm for the late game) or when you can curve out (Turn 1 Mana Wyrm, Turn 2 Sorcerer's Apprentice +  Unstable Portal).

However, here's the deck description:

The Freeze

We play all sort of time-buying spell here, like Mirror Image, Frost Nova, Cone of Cold and Blizzard which allow us to make our key-minions less easy to clear, and so we can keep accumulating our stuff.

The Miracle

Mana Wyrm, Sorcerer's Apprentice, Flamewaker and Gadgetzan Auctioneer: having just 2 of this 4 minions on board provides crazy value as you can gain from your spells the card draw you need (in cases like Arcane Intellect or with the Auctioneer) to strengthen your combo while gaining extra damage. Value your Wyrms there, they really become crazy in a few turns.

The Spiciness 

Emperor Thaurissan and Echo of Medivh both make some crazy scenario happen once in a while as you can find yourself pulling off your combo out of nowhere and play something like Flamestrike 3 mana, while Archmage Antonidas and Rhonin here acts as obviously synergic finishers and if your opponent kills Rhonin you almost always win the game.

The Support

Spellslinger is a really solid 3 drop as he provides you board presence while keeping your hand full of the spells you need to start comboing, while Arcane Intellect is an obvious choice as we need card draw and it's a spell, and Flamestrike is THE boardclear particularly in this deck which can combo it with Flamewaker, Blizzard and the various freeze spells.

___________________________________________________________________

I tried to write the minimum necessary as I wanted to save time, I believe this isn't the easiest deck to play though and it surely can have some terrible RNG sometimes, but it's the one I had the most fun playing while maintaining a good winrate. Hope you'll have the same fun here!
Enjoy