The goal of this deck is to use Spirit of the Shark in combination with Da Undatakah!
That way we can double the following deathrattles: Leper Gnome, Leper Gnome, Abomination.
Then, we play Necrium Vial on Da Undatakah. The Abomination deathrattle kills the original Undatakah for 36 damage!
Combo starts at around 10:20 in the video!