Hearthpwn

My thought:  Arcane Artificer and the 2nd copy of Leyline Manipulator seem extraneous.  Maybe a couple Acolyte of Pains instead?

You can remove the [card]Arcane Artificer [/card] for an Acolyte of Pain.
There are 2 [card]Leyline Manipulator [/card] in order to reach your combo earlier even if one of them is your last card

You don't need the extra spell if you play the 3 Apprentices and Archmage first, the Molten Reflection will give you the Fireball.

My version of the deck.