Hearthpwn

Have been experimenting with this deck for a few days now and it has been doing alright. It's a very fun deck so I thought I would share it. Although it's fun, it's not a very easy deck to pilot. General strategy is to survive until the late game by using your minions to trade effectively, while healing and drawing into Malygos burst.

This is my first "guide" and deck I really made myself. This is not the most revised version of this deck, talk in the comments about replacements or what worked for you.   

General mulligan from my experience: Go for anything that can stop early aggression. You do not want to fall behind on the board by too much during the early stages of the game. This means Deadly Poison, Zombie Chow, Backstab, and Blade Flurry.

Meta Mulligans put simple: Paladin - Look at the General mulligan, but especially think about keeping Fan of Knives for this class.

Druid -  Druid always seems to be the destroyer of control decks like this one. Try to get your General mulligan cards. Other than that hope he draws bad and hope you draw good. 

Warrior - With the rise of patron overtaking the ladder I generally mulligan for that deck. Try to keep blade furry and a deadly poison for a board clear on him.

These three classes are the kings at the moment. I usually face these classes, so I can't really comment on other match ups too much.