I had a ton of fun playing as Warlock and getting Wilfred Fizzlebang.
Turn 3: Hero Power, Ragnaros the Firelord
Divine Spirit... FM...
Shadow Word: Horror is the most fun I've ever had on turn 3 w/ coin. Keeps your opponent from getting a shot at a gift on your side during their turn 4, too.
0-6 for me now Have yet to hit an opponent without hard removal on turn 4.
You might want to tech in an extra arcane explosion if you're seeing a lot of them. The combo with Bloodmage is great for controlling discolock. I've also had decent luck getting AOE from Cabalist's Tome (if I'm still alive by turn 5-6-7) to save my ass.
It all comes down to the mulligans and setting yourself up for that one big round of board removal and then a nice, easy win.
I really enjoy random brawls, but I really think this one is executed poorly. There's way too much opportunity for a non-interactive game where one player wins before the second player can even play a card or two. Of the ten games I've tried, only one of them turned out to be interesting - the rest were far too one-sided.
I enjoy random brawls; I don't enjoy five minute long coin-flips.