Hearthpwn

Plays like Freeze Mage, but with the Archmage Antonidas/Emperor Thaurissan/Sorcerer's Apprentice/Duplicate combo.  Seems like a lot of cards, and it is, but I was able to pull it off on my first try so it can't be that rare.

The rest of the deck is stall and draw, waiting for the combo.  Here's what you need to do to set it up:

1. Draw into a Duplicate and play Sorcerer's Apprentice to get it killed (it helps to play your freezes/Ice Blocks appropriately to force the AI to do this)
2. Do it again with another Duplicate and Sorcerer's Apprentice
3. You should now have 4 Sorcerer's Apprentice in hand.
4. Draw into Archmage Antonidas
5. Make sure you have a spell in your hand that costs at most 5 mana and then play Emperor Thaurissan.
6. Emperor Thaurissan will reduce the cost of Archmage Antonidas and 4 Sorcerer's Apprentice to 10 mana total.
7. Play Archmage Antonidas and 4 Sorcerer's Apprentice and whatever spell you had.
8. Infinite Fireball that Steel Sentinel to death

Yes, it takes a while.