Hearthpwn

I successfully reached #1 Legend with this high-quality tempo rogue deck. Most minions are high-attack and low health, so Mo’Arg Artificer has no real downsides. Griftah and Lorewalker Cho are great card generation, allowing you to put up a fight even after they push through your turn two Millhouse. It is my opinion, as a pro player, that Millhouse Manastorm is one of the best cards on curve. Most decks these days don’t even run many spells. If you’re playing against Spell Mage, they tend to dump their hand and then topdeck for the rest of the game, which is an obvious benefit for you. Use Spark Drill as spot removal, and once they’re getting low on cards, drop The Darkness to really close out the game. 
Mulligan Guide and gameplay at 2 upvotes!