Hearthpwn

Who's the Boss Now?

Mulligan:

Always mulligan for Astral Communion and Innervate or Wild Growth/Darnassus Aspirant.

If you've got Astral Communion in your initial draw, mulligan away any card that is better to save for later, such as board clears or Saboteur in order to avoid getting them discarded.

Card reasoning and usage:

A key card in this deck is Saboteur in order to counter other Astral decks and slow down your opponent. Playing a Saboteur in late game, can be game winning or help you stabilize.

Starfall and Swipe can be combo-ed with Arcanotron if either you or your opponent summons him. The deck has three board clears as it's very easy to fill up the board using the hero powers. Starfall doubles as a potent single target spell too.

Big Game Hunter is included because the hero power Pile On!!! is very unpredictable. Even if you manage to use Astral Communion on turn one with The Coin + Innervate,  you might end up summoning a big minion for your opponent when you use Pile On!!!.

Alexstrasza is there to end the game quick and prevent your opponent from stabilizing, if you Astral Communion on turn one and draw Alexstrasza before turn six, it's usually over.

Savage Combatant, Maiden of the Lake, Kvaldir Raider, Mukla's Champion and Frost Giant all synergise with the high usage of hero powers. Additionally getting any of them from Pile On!!! helps you build your board or forces your opponent to trade. 

**Update: 02/01/16**
Removed Force of Nature and one Wrath as they rarely provided enough value to justify including them. I swapped them out for two Volcanic Lumberer, which is very easy to get value from, due to the large amount of minions dying to hero powers.

If you like the guide remember to up vote :) 

Hero powers that you can get are:

Hero power generated minions are:

Bone Construct, Dark Iron Spectator, Flamewaker Acolyte, Fallout Slime, Whelp, Arcanotron, Toxitron, Electron, Magmatron