Neat game but I agree that it's a bit broken for whoever goes first. There's no reason not to defend every time, let your knight die, and then bring out another one next turn to attack. Unless I just got lucky and kept getting Knight cards.
Other than that, the card synergy was pretty good and definitely represented the theme of the jam. Also I think the issue people have with the text is that the card you highlight sometimes stays behind other cards even when maximized.