This is the deck I used to topple the heroic encounter with Thaddius. I know it's bad, but it's only bad because I don't have any good cards!
This deck worked well.
I beat Maexxna on heroic the first try after building this mage deck for her. It's got plenty of board clear and cheap come into play abilities. Wild Pyromancer, Elven Archer and Voodoo Doctor were great. I think an owl ...
TidesofTime Double Thaddius
reason 1: Reno Jackson is so amazing. I didnt make this deck, but it is jut so much fun. http://www.hearthpwn.com/decks/366918-reno-hunter-control