The goal of this deck is to obtain an Undatakah with a triple Fiendish Servant deathrattle.
We can do this by playing Faceless on one of the Servants.
Then, in order to OTK we want Soul Infusion to land on Undatakah. This gives Undatakah 10 attack,
Finally, play Boar, Undatakah, Grim Rally the Undatakah for 32 damage!