Hearthpwn

This is based off of Xixo's Rank 1 Legend Maly Miracle Druid deck. With only two legendaries in this deck, it's very affordable, and it allows for you to use spells as much as possible with Medivh and Malygos as win conditions. You'll notice that the druid cards are mainly the spells, and the neutral cards are the spell synergies.

UPDATE: Made a bit cheaper. Until I actually get Arcane Giant, I have Acolyte of Pain for the time being.

UPDATE 2: DE'd Barnes (I can't even use this guy). Got Arcane Giant. Price explosion!

Replacement list:

Now if you're not as fortunate as I am, you can replace a lot of cards here with others.

Arcane Giant: Druid of the Claw. While not exactly the best choice, it still provides face protection and a possible lethal.

Enchanted Raven: Raven Idol. (I don't have this card, for those of you that do, definitely put this in.)

Azure Drake: Ogre Magi. Costs one less, doesn't have the card draw, but hey, don't forget the spell damage!

Irreplaceable Cards:

Summoning Stone: Anything other than Medivh, the Guardian will not provide you a minion for every spell you cast.

Malygos: If you're asking for an explanation, you really shouldn't be.

Violet Teacher: You could go for Imp Master, but that really takes away the value.

Gadgetzan Auctioneer: No other card will allow you to draw a card for every spell you cast. Plus, not having this guy in a deck like this is not going to help you in any way possible.

For those that are more fortunate than me, add:

Bloodmage Thalnos: This guy can take the place of one of the Loot Hoarders. Spell Damage and the card draw makes this a good legendary for this deck.

Emperor Thaurissan: This helps make your spells cheaper and your minions like Maly here able to be played a lot earlier. No doubt that this is a good addition to a deck like this. Just make sure he doesn't get killed too easily.

Fandral Staghelm: Honestly there aren't many Choose One's in this deck, but hey, at least you gain both effects through this card!

Medivh, the Guardian: When Standard rotates out, this is going to take the place of the Summoning Stone in this deck. 

Here you have it. Hope you enjoy! I'm planning to test this on the ladder next season (hopefully I get Kara done before then...got all the way to the Spire!)