Good but could have been great.
I really enjoyed this... I think a version 2 could be a chart topper though..Let me break down my thoughts for ya.
Graphics --- Nicely done, good pictures and everything. Maybe spend a bit more time on the generic card border though as it makes up a lot of the visual aspect of the game.
More playing fields would be good. The backgrounds were a bit drab.
Characters need some work. Icon's isn't enough. You should have default characters then give them clothing to choose from to give them battle bonuses like increased health or starting cards etc.
Other than that my only other suggestion would be a more visually dynamic monster v monster sequence. After 2 or 3 games it got very dull.
Style --- As I started saying about the characters your main issue which is stopping this from being awesome is a story line type development. Add like 200% more cards + a few unlockable cards you could get after a certain battle and this game has already leaped to new heights.
Call the guy and adept wizard. Blow through a kingdom in peril. Paint a picture of a dark wizard causing trouble and I'm on board.
Sound --- No sound!?!?!?! What were you thinking? Jesus. To put that much time into something and then just not bother with sound was a strange move indeed. Version 2 needs sound.
Violence --- Silly category but there wasn't any violence or brutality really. As I said earlier perhaps increase the dynamicness of the monster v monster sequence.
Maybe have degrading character states as the player or his opponent take damage.
Interactivity --- Simple Intuitive design and deck building. Great job here. Lots to do plenty of decisions to make and all clearly presented. As complexity increases you may want to make sure you don't lose your playability factor.
Humour --- A few silly characters and monsters in there but ultimately a bit dull.
OVerallllll---------Really nice game. With more planning and development though it could be amazing!