Hearthpwn

Very explosive zoo deck that wins by turns  4/5/6 , very good against all the wild meta couse we are simply more explosive then hunter, warrior and mage. As you can see in the pic, against a warrior by turn 3 i had 20/20 worth of stats.

 So lets talk about how to play this and how to counter actual meta amd get faster and easier to legend.

• WARRIOR : yeah the ladder is so full of quest warrior, what you look for here is board presence, explosive turns where you build  a huge board but same time not bwing too greedy becouse by turn 4 you could be dead too if you dont gain board. Malchezaar imp could be dropped on turn 1 against quest warriot as most of them dont play single minion clear and you can start to gain huge value off from it and get ahed very fast.
• HUNTER: quest hunter is a very good matchup, here is important to not "feed the quest for nothing", i mean consider to drop your minions only when you sure you hit a crazy turm that they are not really able to deal with. What happens most of the time is that even when they complete the quest they wasted their resources tryng to stop us but same time we cycle so fast that we still have a lot of other minions to "vomit" on the board.
• MAGE/DRUID: Here the approach is similar,both classes have 90% of the time combo archetypes. What you look for here is to put constant pressure for not letting them having time to build their win condition. Same time remember that druid has spreading plague, poison seeds.. So fload the board in a smart way.. Dont over do board buffers if they can clear it.

This is what you will find in ladder , specially on rank 5 to legend, zoolock is seriusly in a good spot in this meta, only druid is really a shit matchup if they hit oken summon, spreading plague ecc...