http://www.hearthhead.com/card=2598/kodorider
With all the new inspire cards out, it can be fairly easy to get your hero power to 1 mana cost and be able to use is more than once a turn. With this card you can flood your side of the board with 3/5 kodos. This hardly seems fair. Maybe inspire shouldn't work while a minion has summoning sickness? There is a good chance that when this card is out that they can get a kodo out the same turn, if not more. Your only recourse would be something like vanish, poison seeds or twisting nether.