Gigantomancer!  I built this deck to take full advantage of my favorite rare from Rise of the Eldrazi.  It was built to be a combo deck:

1. Ramp into Wild Pair.

2. Cast any 1/1 dork and fetch Gigantomancer.

3. Cast any other 1/1 dork, and in response to the Wild Pair trigger, make it a 7/7.  Fetch Iona, Shield of Emeria.

4. Next turn, in all probability, swing for lethal with an army of 7/7s.

However, the deck was having issues with winning if it didn't draw its combo, so I also threw in four copies of Joraga Warcaller, who feels almost made for this deck.  He's a 1/1!  He gets better the more you ramp!  ELVES!  Suddenly, I had an immensely stronger deck that could play either aggro or combo and, thanks to my ability to use Wild Pair as a card advantage engine, a solid late game.