This is a deck focused on comboing with Yawgmoth, Thran Physician.
There are several turn 3 combos.
Turn 1 - BG Land, Elves of Deep Shadow
Turn 2 - B Land, Geraf's Messenger
Turn 3 - Land, Yawgmoth, Sac Messenger when it dies return it with a +1+1 counter, give it a -1-1 counter deal two damage from it entering, Sac repeat until opponent is dead. It only works if you have more than half of your opponents lifetotal since you take 1 damage for each 2 damage given.
Or
Turn 1 - Land, Mana Dork
Turn 2 - Land, Young Wolf, Blood Artist/Zulaport Cuttthroat
Turn 3 - Yawgmoth, Sac Young Wolf infinitely as described above, deal infinite damage. Note that you doesnt take damage from this combo.
The rest of the deack is made to either find the combo or provide an alternate combo as Hapatra, Vizier of Poisons does.
When having Hapatra, Yawgmoth and at least one other creature on the battlefield you can sac the last creature to put a -1-1 counter on an opponents creature creating a snake because of Hapatra, then Sac the snake to repeat. For each time this loop is repeated you lose 1 life, puts a -1-1 counter on an opposing creature and draw a card. It gets real nasty when you also have Blood Artist/Zulaport Cuttthroat in the mix often resulting in an instant win.
