Grixis Control with some Life-Gain off of Basilisk Collar and Sorin Markov
The dream is to have a Bloodsoaked Champion or Bloodghast turn 1, followed by a Basilisk Collar giving it Lifelink and Deathtouch.
Dealing 2-4 Lifelink damage every turn from the get-go is a ton of fun, especially after you factor in the amount of burn and counter-spell that this deck has, it adds up.
Some play-tests have given me my planeswalkers or the Platinum Emperion. When the Emperion is out, the game is pretty much over. and Sorin Markov is an awesome addition to the deck. He makes it so the Bloodghast have haste with his ability to drop the opponent to 10 immediately. Or, if it's later in the game, and your opponent is already to 10, you can use his +2 to keep the face damage going on your opponents.
Sarkhan, the Dragonspeaker
is a fun addition and I like him. However, he is rarely a Win-Con.
My favorite Win-Con by far though, is the Dragonmaster Outcast. Flooding the board with 5/5 Flyers is an awesome feeling.
The Blue in the deck is there to ensure your creatures aren't subject to any removal spells, and to keep enemy threats off the board.
And the best part is, Bloodghast and Bloodsoaked Champion both have abilities to pull them back from your graveyard if the enemy does manage to kill them.
All in all, this deck should annoy the crap out of your enemies, and make you laugh maniacally while kicking butt with the many Win-Cons.