My druid deck that has one primary win condition: Swarm the field with Illidan's Flames of Azinoth or Onyxia's Whelps and then savage roars next turn.
Of course the deck can still win by outlasting and playing well, but usually if the opponent does not deal with the swarm, they will lose to the savage roar since it does 21+ damage easily.
0 - Innervate X2
2 - Mark of the Wild X2
2 - Power of the Wild X2
2 - Wild Growth X2
2 - Wrath X2
2 - Novice Engineer X2
3 - Savage Roar X2
3 - Dalaran Mage X2
4 - Swipe X2
4 - Keeper of the Grove X2
5 - Nourish X2
5 - Starfall X2
5 - Druid of the Claw X2
6 - Starfire X2
6 - Illidan Stormrage
9 - Onyxia
Card Choice Explanation
The innervates and wild growths are to jump right into mid game units such as druid of the claw from the early game or right into late game units such as Illidan or Onyxia from the mid game. As I said before, Innervate and Wild Growth work very nicely for building up many Flames of Azinoth as well.
If I can't jump right into mid game units, power of the wild, novice engineer, dalaran mage, wrath, and mark of the wild all provide means of sustaining through the early game.
Swipe and Starfall provide the necessary AOE if I failed to stop the opponent from swarming early on and work really well with Dalaran Mage. I did try azure drake, but I found that it was just too costly to take advantage of the spell power and too late to help with the early game. This deck doesn't really have a problem with card advantage so Azure Drakes were taken out.
Savage Roar provides the win condition after swarming the field. It also works very nicely to take out minions with your hero. Additionally I find it very useful against Priests since after using it it say a druid of the claw, it returns right back in the sweet spot of 4 attack to dodge their removal.
Druid of the claw provides the necessary taunt and is a necessary minion for this deck to work. The keeper of the grove is similar by providing easy 2 hp removal or a necessary silence to take care of decks that decide to buff.
Nourish provides a nice way of jumping ahead of the mana curve, but usually it's used to gain more cards to find answers to what the opponent plays.
Finally Starfire is just great removal and is very nice to have if the opponent only has a little HP left.
Some might be thinking: They will just kill Onyxia/Illidan immediately. Yes, but the real threats are all the other units that Onyxia and Illidan provided. Not clearing those units is a bad thing, especially when stacking savage roar and power of the wild's buff effect.
I also found that this deck does really well against priests. They have no direct way of dealing with Druids of the Claw or Keeper of the Grove+Mark of the wild, providing solid board control.
Overall this deck has worked really well for me and is one of the two decks that brought me to 3 star master rank in 42 wins.