Very well done. Great cards, great AI. But then again the lack of ability to created your own deck..
For example: for the vampire deck you can only unlock at most 1 Vampire Nocturnus, 2 Vampire Nighthawks and 2 Gatekeeper of Malakir. How can you play a vampire deck with so few copies of those staple cards? You can't. After some time you can't even have fun anymore against the AI with such a lame deck.
Many great cards were implemented this time, but only a few copies are usually unlocked, and some nice cards don't unlock at all - such as Abyssal Persecutor for instance, which only appears during a quick challenge game. I really can't see the point of not creating a deck edition module, at least for offline play. Veterans will probably be disappointed as I am.