Hearthpwn

The game plan is pretty simple, use Oaken Summons and Juicy Psychmelon in the earlier turns to get Astral Tiger on board and Hadronox in hand.  It's recommended that you use Naturalize on your Hadronox if you need the Taunts that turn, or if your opponent could transform Hadronox with Hex or Polymorph . Once both of them have died, use Witching Hour and Gloop Sprayer to stall the the game out until you can infinitely cycle with Da Undatakah 

Since Taunt Druid is experimenting with Oaken Summons , inserting Astral Tiger to make Da Undatakah work seems like it could pay off.  As long as you're not playing against Shaman or Mage, you'll get the Deathrattles from Hadronox and Astral Tiger , since Da Undatakah doesn't seem to care if the Deathrattle triggers, just if the minion that has it dies.  If Da Undatakah actually takes three unique Deathrattles, then you can probably switch out Gloop Sprayer for Carnivorous Cube 

Note: I'm a F2P player, so I just made this as something I might be able to play after release.  This isn't the most optimal list for this archetype.  Better Taunts like The Lich King and Primordial Drake and  supporting cards like Branching Paths and Ultimate Infestation should be put in if you have them.