Hearthpwn

The ideal goal of the deck is to play Master Oakheart on 9, which summons  Drakkari Enchanter, Dragonhatcher and Green Jelly. Then you have a Board of 10/20 worth of stats + 2 Dragons. In this deck almost every Dragon is dangerous on it's own and Drakkari Enchanter, Dragonhatcher and Green Jelly must also be dealt with.

If one of the summoned dragons is Nozdormu the opponent has less then 15 seconds to react on this board.The animation of the "End of Turn" Effects (especially for Green Jelly) is really slow and when they are doubled, they fully take over the 15 seconds of your opponents turn and it's your turn again.

For the Mulligan, you should always take Doomsayer and Benevolent Djinn. Doomsayer is good because you have as good as no early game. Benevolent Djinn works on the one hand with Drakkari Enchanter and on the other hand you don't want to get it by Master Oakheart. 
Since I play this for the fun of this one turn, I always keep Master Oakheart, if it's offered, because it isn't safe, you'll draw this until turn 9.

Reason why I chose especially these cards:
Ysera, Cobalt Scalebane: Strong dragon cards with Drakkari Enchanter synergy.
Primordial Drake: Stops aggro and is a taunt dragon.Deathwing,Dragonlord: Even without other dragons in hand pretty strong. Strong synergy with Nozdormu.
The Lich King, Ragnaros, Lightlord: Strong on their own, stronger with Drakkari Enchanter.
Grimestreet Enforcer: If it buffs one time okey but twice is already pretty strong. Drakkari Enchanter helps again.

The other cards are part of the combo or for staying alive.

If you have fun: "You're welcome". If you reach legend with this deck: "HOW THE F*#% DID YOU MANAGE THAT!?!?!?"