Hearthpwn

I tried some priest, lock and mage decks before and had the whole time the same problem: I had no boardcontrol. So the minions killed me sooner or later. So I thought to use a deck that is based on spells and a couple of minions, that support castings.

Just start the fight new till you mulligan or draw on first turn Arcane Missiles.

Then only clear the board till you are ahead using you completely mana on each turn.

Try to get Duplicate on Flamewaker cause he and his copies which are also on the board then will help you a lot to gain and keep the boardcontrol.

Consider that Sorcerer's Apprentice will help you to use all your mana. Don't play this card wasteful. Wait the time till you really need it.

Thats it. I had to start a few times till i got my missiles at begin and then i burned Geddon. I don't know if it was luck, but I haven't seen any of his Living Bombs.