This card, despite its looks, isn't that great. "But, it's a stronger Llanowar Elves! How can it not be awesome?!" I hear you cry. Well, it boils down to this: do you really need a stronger Llanowar Elves? Look at it logistically for a moment; how many times have you swung with a Llanowar Elves and wished "Man, I wish it was a 2/1"? Better yet, how many times have you swung with a Llanowar Elves in the first place (aside from when you've got a Kaysa, an Ezuri, Renegade Leader, and 3 copies each of Elvish Archdruid and Imperious Perfect out on the battlefield)? Adding 1 power to Llanowar Elves might seem nice, but it still only have 1 toughness, meaning that it'll break on just about anything. Besides, there's no point in slowing your game down just for a pointier Llanowar Elves.
Pros: Taps for green mana, pointier Llanowar Elves
Cons: 2x cost of Llanowar Elves with little improvement