Frustrating
The NPC always seems to have the better cards, no matter how you play. It's extremely frustrating. Once they get ahead with creatures played it's almost impossible to catch back up. And even if you customize your deck there's no particular play style you can specialize in so it's almost pointless. Also the attack/defense calculations were very strange..I had some weak monsters doing insane damage to heavy defense cards and visa versa...it seemed inconsistent.