B/W Vampire Aggro (w/ lifegain strategy) (Frontier)

The deck has an aggro core. Metallic Mimic and Drana help fuel +1/+1 counters so our army has some size. Stromkirk Condemned and Indulgent Aristocrat also serve as pump, but at a lesser impact.
There are 10 one drops in the deck so we curve out really well in the early turns. The four drops are the finishers, when things stall out a bit since neither actually requires us to get our attacks through. Sanctum Seeker just needs us to attack, while Cliffhaven triggers when we gain life which we do constantly.
20 cards in this main deck trigger life gain and there are another three in the side (Sorin makes sure every creature triggers).
The sideboard increases the lifegain combo. Zulaport Cutthroat will trigger a ton during the game, especially with additional sac outlets. The main deck has six sac outlets. The sideboard adds Yahenni and Voldaren Pariah. Both are very strong on their own, and serve as finishers. After we aggro out some damage you can sac your creatures and deal the last damage with a Cutthroat or Cliffhaven on the battlefield.