Hearthpwn

Mulligans

In almost all matchups you will be looking to mulligan for Mad Scientist and Blackwing Technician. If you are able to secure the perfect curve of these two cards along with a Twilight Drake, you should almost always keep this hand.

Many players are tempted to keep a 9 Mana Dragon card in order to activate an early Blackwing Technician. This is usually a bad idea, but can be considered if the rest of your hand is very strong.

Against decks that you suspect to be aggressive like Hunter or Mage, you should mulligan more aggressively for early board control tools like Zombie Chow Zombie Chow and Frostbolt.

Against heavy Control decks you can keep a slower hand. Passing early turns into a large Twilight Drake on turn 4 is usually quite effective in slow matchups. Emperor Thaurissan is also a possible keep in these matchups, but only if you have The Coin and an otherwise strong hand.

Card Swaps

 Harrison Jones can be included in the deck in place of one Sludge Belcher if you are encountering a large percentage of Weapon matchups.

A single Fireball can be included in the deck in place of a Azure Drake or Sludge Belcher in order to provide some more removal options, as well as some potential burst damage.