hate to be a downer about free spirit and groovy cat, but these two are druids latest strong cards, as seen during theory craft you can pyroblast anything for two mana, and have armor to take it. these two cards will be nerfed. hopefully blizz nerfs them properly not badly. possibly best outcomes are make them both battlecry only or make them both 3 mana and keep both battle/rattle effects.
if you play one each - its 3 atk and armor for two mana. 5/5 for four played at 2 mana, then play the six mana spell that revives mins of two or less mana and there is another 4/4 worth of atk and arrmor for two of those played. then you have anything that copies those cards well you see where i'm getting at