Hearthpwn

Here it is,

The purest nature druid you ever did see. With eight (ten with Jerry Rigs) nature spells and Herald of Nature, beasts feel very at home here.

Flood the board and use your board buffers (including the underutilized Pathmaker Kodo Mount) to smack your opponent in the face.

EDIT 1: After changing out Pathmaker for Kodo Mount, it pushed me from Diamond 4 to Diamond 3. This seems to be the right change to address the deck's weaknesses. Kodo is great for extra damage or a strong and timely defensive option that uses few resources and leaves you with a board... Kodo also grants slightly higher board survivability vs. Paladin.

EDIT 2: I have never been overly fond of the Frostwolf Kennels spell, so I replaced it with Wing Commander Mulverick. To be honest I do not currently have Mulverick in my collection, but I know its potential to keep you in the game vs aggro and even control. If you do not own (like me), I might also suggest for that slot x1 Pathmaker in its place. A Pathmaker with deal 2 damage can be significant in early game, and another +1 attack minion can be an impactful option to have to close out the game. Or if you don't care about the gimmicky pure theme of the deck, Blademaster Okani is an excellent option as well.

EDIT 3: Just made it to legend 1574 with this deck. I ran Blademaster Okani because I don't have Mulverick. Decklist updated to represent deck I climbed to legend with.

Hope you enjoy. Happy playing!