A frame for a recruit Druid deck. I've had reasonable success with it between ranks 20-15 with a 6-1 winrate against Raza Priest too. The ability to accumulate masses of armour with Oaken Summons, Branching Paths, Malfurion the Pestilent and Ultimate Infestation helps push you out of the 24 damage sweet spot. Aggro Paladin is also easily curbed by the Astral Tigers and Ironwood Golems retaliating to the Call to Arms turn (4 Mana). They also challenge most of the minions with the 3 Attack stat, except for Sunkeeper Tarim and Corridor Creeper.
The deck struggles against Cubelock, due to the inability to deal with the (seemingly) endless Voidlords, and with Big Priest because there aren't any minions to put enormous pressure on the large minions.
Potential Cards for the deck? I'd probably drop a Jade Blossom in favour of The Lich King, but I don't have the card so I couldn't test it.