Hearthpwn

Used in the "Lord of the Legendaries" series on Youtube, this deck contains every Legendary card current in the game along with 2 alarm-o-bots. It is astonishingly awful, as well as being the most expensive deck both in terms of mana and arcane dust cost that exists. You can make this deck with any class you like, though Paladins Legendary minion is one of the better ones, since it's good in almost all circumstances and provides a weapon on death, which can be buffed with Captain Greenskin. Bad choices for this deck (relatively speaking) are Mage, Priest and Rogue, since you don't have the cards to support/synergize with them well. Other considerations include hero power, but whatever the case, any win you get with this deck is sure to have your opponent screaming P2Win GAEM!!! on the B.net forums immediately.