Hearthpwn

It's been a couple of days since release now so I've had some time to play around with the "Big Mage" archetype and I think I've finally found something that works well.

You have a considerable number of tools to keep early aggression in check with your 2-drop minions and Tar Creeper. You'll often find yourself using Dragon's Fury on turn 5 as a hard board reset. 

Against slower decks, you'll want to flip the roles and put pressure on the opponent early with those early minions, bait out their removals to clear the path for your heavy hitters later on. Dragoncaller Alanna is exactly what control mage needed, a second quality finisher to compliment Frost Lich Jaina. 

Spiteful Summoner and Medivh, the Guardian fit the bill perfectly as synergistic back up for all the big spells you're running and help you keep a board presence in the mid-late game.

Cabalist's Tome is generally far superior to Deck of Wonders as a generator of value, being slower but much more consistent and is much safer to combat the occasional instance of running out of steam than Aluneth which even if you're running low in your hand will very quickly exhaust your deck and mill you to death.

Shifting Scroll seems like a good fit for control but can be pulled by your Summoners and so on and thus is a liability and not worth considering. Likewise, Pyroblast is too clunky when drawn and isn't pulled from the effects often enough with only one copy to be worth it.

Baron Geddon ultimately felt too situational as you already have plenty of board clears and the synergy with Frost Lich is too situational. I think I only had it be relevant once in 50 odd games. 

As for the other lower cost spells, Fireball is worth it as removal or burn and is adequate when pulled by Summoner or Fury, same goes for Ice Block which is often siphoned out of your deck by Arcanologist early on anyway.

Primordial Glyph is the only potential outright "bad" pull but the ability to fish for an answer outweighs the downside of possibly pulling it off an effect.

In your opening hand, you're generally going to be looking for any of the 1-3 drops or Dragon's Fury. Then just keep the board under control and chip away at face when you can until either you play Frost Lich or you've put them on the back foot enough that you can start pushing for lethal.