The theme in a nutshell is "life as a resource" and K'rrik is the obvious leader of the deck. There are lot's of cards that operate at a discount if you are willing to pay a little life (Dismember, Night's Whisper), while most of the creatures have lifelink to help offset those costs (Gifted Aetherborn, Vampire Nighthawk). Cards like Font of Agonies, Spawn of Mayhem, and Profane Transfusion give you opportunities to play mini-games with your life total and will reward clever players.

It's another deck that feels really flavorful but I'm unsure how everything will come together during a game. There's a delicate balance between including a bunch of cards that require life payments but also giving the player extra life with which to use them. I'm sure I'll be tweaking that balance in the future.