So I downloaded this last night and I've played maybe a dozen or so battles. I'm having fun, but I don't know how to build decks (I've got a standard and unlimited deck, but I don't have a "theme' deck), and I can't use my custom deck against the trainers, only random/practice people. Also, the animations are slow, even after turning them off, and the avatar/characters are ugly. I also don't understand how to get new cards.
This just feels incomplete and ugly, which is a shame because I enjoy the fundamentals of the card game (even if it is a bit easy so far, or too dependent on luck).