Hearthpwn

This is an hybrid deck after the expansion and it's mighty fun and efficient. 

While everybody is toying away with the Mechs (they're bad, mostly) and the new archetypes, a classic with a new twist has all the answers. 

This is a Spiteful Prist, so, of course it runs Spiteful Summoner, 2x Free From Amber and 2x Mind Control. That's basic. So far I did not try the new legendary Priest Spell, but I'm thinking about it. 

This is easy to navigate, you play for curve always (almost). 

The twist, here, is the heal package. 

2x Crystallizer as a 1-drop works magic with Fungal Enchanter and Happy Ghoul (like the Zoo Warlock). 

In the late game, the heals can also apply to Nightscale Matriarch for a value board that will do the finishing touch you need. 

The Matriarch also helps the dragon package, so, here comes Duskbreaker and Primordial Drakefor AEO and anti-aggro measure. 

Lady in White seems like a fantasy here, but it's really a game changer for the late game if hit on curve with the Drake, Matriarch and it boost your small minions to something decent. 

Spellbreaker is a must to get rid of the Magnetic Mechs and everything in the way. 

So that's about it. Stonehill Defender is a value card and works better here than Curious Glimmeroot. 

MULLIGAN

This is a work in progress, but the strategy is pretty much the same. Always but the big minions and spells back in your deck, fish for Keleseth if you don't like your early game and if you think you are facing control, keeping Lady in White is not a terrible idea. 

vs PALADIN and HUNTER : assume it's aggro or spell Hunter and always keep Duskbreaker. Stonehill Defender will get you some time as well. 

vs WARLOCK : Spellbreaker is useful to keep. 

vs MAGE : Go fast, big spell mage is a real problem matchup, they have to many AOE for your minions and will own you most of the times. Everytning else is fair game.