Hearthpwn

I used the cards I had available. The aim is to get out your taunts and in that way fend off the enemy minions. This deck is modified from an existing one, since I did not have the cards. Only spells I had to use when I beat the boss were Wild Growth, Innervate and Mark of Nature.

Game strategy:

• Mulligan for Innervate, Wild Growth, Annoy-o-Tron and Emperor Thaurissan. The Annoy-o-Tron help greatly at the beginning.
• Try to get Emperor Thaurissan out when you can, to make your other taunts cheaper.
• Keep pumping out taunts, hopefully you can place a discounted Kel'Thuzad at some point.
• Alexstrasza to get the boss down to 15 health.
• Victory!

Card explanation:

• Innervate & Wild Growth -> try to get Emperor or taunts out early.
• Annoy-o-Tron -> excellent early game taunt.
• Robo Cub -> Just wanted a backup early taunter.
• Mark of Nature -> Versatile card for boosting your minions, more flexible than Mark of the Wild.
• Wrath, Starfall, Poison Seeds & Keeper -> Removal I kept from the original deck I found, didn't need them though.
• Shieldmasta, Druid of the Claw, Belcher, Hogger, Sunwalker, Ironbark Protector & Volcanic Lumberer -> Taunts are essential in this deck, these were the best ones I have.
• Emperor Thaurissan -> Essential for lowering mana cost of your taunters. Try to keep him alive!
• Dr. Boom -> Just because. :)
• Kel'Thuzad -> Revives fallen taunts!
• Alexstrasza -> You can use her to set the boss to 15 health for an easy win.

Replacements:

• Dr. Boom, Hogger & spells -> More taunts, such as Sunwalker and Master Jouster.

Good luck!