In the immortal words of Peter Griffin, "Figgin' Sweet!"
A few things,
The art looks awesome. I love the multiple ways the card can be referenced(horde, troll, mage, fire, etc.). Always for greater flexibility in deck design leading to entirely different decks using the same hero.
Is it 16 heros different heros total or 16 different hero types with multiples of each class for the different races? For example, will we see a dwarven warrior and a human warrior or just one race representing the warrior class for the Alliance. If there is only 16 hereos in the whole set, having one in each pack will lead to lots of multiples of cards you will never need multiples of.
Not too keen on the apparent size of the trait bars. Loks like they will be a pain to read in real life, unless you use an over-sized one.
As far as his ability, a little ho-hum, but like others have said you can probably juice it up and make it do more damage assuming you have the right items. Maybe there will even be an item or ability that lets you flip back so you can use it again.
Looks like a good start to the set, only 360 more to go Wheeeee!
No quote for you!