You face Jaraxxus !!

This deck is a Lord Jaraxxus version of Cubelock. Replacing both Voidlord and Doomguard with Lord Jaraxxus. The premise of this deck is to get Lord Jaraxxus on the board by using Possessed Lackey (if Jaraxxus is still in your deck) to recruit him. Or by using Skull of the Man'ari (if Jaraxxus is already in your hand). This way the battlecry wont trigger and you get a 3/15 demon on the board.

When this is done you want to use Carnivorous Cube, Faceless Manipulator, Zola the Gorgon and Spiritsinger Umbra to get as many Lord Jaraxxus's in play before the enemy player kills him. If you succesfully fill your board with multiple Lord Jaraxxus you can use Kooky Chemist and Crazed Alchemist to turn your Jarraxus army into a OTK of 15/3 minions.

If the enemy players kills all of your Lord Jaraxxus minions on the board you can use Bloodreaver Gul'dan to summon a second Jarraxus army. Which can once again be followed up by Carnivorous Cube, Faceless Manipulator, Zola the Gorgon and Spiritsinger Umbra plays to get even more of them.

This is the first version of this deck I made, so I'm sure it can still be improved alot. Any feedback is welcome ! What should be replaced & changed..