Combo:
Step 1 : Play Mecha’thun, let him die. No worry if the opponent silence or sheep him, the deathrattle can still work on Da Undatakah.
Step 2 : Play Da Undatakah into goblin prank (when they are the 2 last cards of your deck)
Step 3 : Enjoy the reaction of your opponent who just lose vs a mecha’thun hunter