Just made this deck and started to play on ladder. So far EZ climb. I will play some more, adjust the deck and than write a full guide.  

The combo:

1) Reckless Experimenter

2) Spiritsinger Umbra

3) Leper Gnome X 2 (4 DMG)

4) Kobold Sandtrooper X 2 (+ 6 DMG)

5) Embalming Ritual on Umbra.

6) Teron Gorefiend (+ 10 DMG, 20 so far)

7) End turn.

Umbra will resummons itself and Teron will die because of the Experimenter.  All of your minions will than be re-summoned and will cause extra 20 DMG. 40 DMG in total.   

You don't always need the full combo to finish your opponent.  

Have Fun!