Super Card Tournament

It seems to me that not being able to attack the opponent's life points directly is a problem, since it significantly de-incentivizes aggro decks.  If I have some specific super-high-cost combo I want to go for, I can just leave my board empty and save up for it.  In fact, Martyr, cards that don't get stunned when played, crab fortress, and airship fleet are all ridiculously good because of this.  Also the AI kills your Martyrs, which is probably strategically correct most of the time but is a little weird since it gives you health. The only real counter is GMO bees, but only one opponent runs that and you can kill it with stunless cards easily because of its low health and the lack of redirection possible in the game.