Hearthpwn

Most everyone realizes that warlock is best for this brawl with all its tools for destroying it's own treasures and stealing his opponent's treasures. What I've added are ways to heal and to put your life total ahead of your opponent's.

Lifedrinker both heals your face and damages the opponent's face, so it can help heal you if needed or put your opponent in lethal range if needed.

The other heals are siphon soul (also good removal if you need it), antique healbot for 8 healing, and dark pact for killing your own treasure and healing for 4 simultaneously.

The plan is similar to everyone else - destroy treasures on every turn. Discover the treasure as soon as possible so you can put massive tempo on the board, but be careful to not extend too much and try to get cards out of your hand so you don't get milled with the 0 mana return 3 random minions to your hand. If you can return your opponent's minions to his hand, try to put back really expensive minions so that he is stuck with a card in hand or has to play a lot of mana to get it back on board instead of destroying and discovering treasures.

The difference is your heal cards. When your life total gets low, play the heal cards aggressively to put you in a range where your opponent can't rush you down and you have more freedom. Use your lifedrinker if it will put your opponent in a dangerous health spot where he is afraid to tap or use a board clear like felfire. Antique healbot is the best heal in the game, and siphon soul is useful as a small heal and removal simultaneously if you need to do both. Why emphasize heal cards? Because you and your opponent keep discovering treasures that enable you to keep flipping the board, and the way to win is to be able to push face damage, possibly with burst damage from the treasures like a 0 mana doomguard. It's important to heal so you can freely use your life tap when you need it, and so you can focus on winning the board enough to be able to push damage to your opponent's face.

Have fun!