I liked the idea of this game, but I think there were some small adjustments that could be made (of course, what is already here is VERY impressive for just 48h).
I think full camera control would help a lot in the navigation... sometimes I could not click on the grid because the cards would stay in front of it (mostly on the narrow corridor that "comes towards" the camera angle).
Also, I think an indication of the Attack Phase would be nice. It seemed to me that I always had to move twice or thrice in order to get to the Attack Phase, when it would probably be better to allow attacks at any moment (costing your Movement Phase). And an indication on the cards that you did everything you could with the unit would be nice.
In any case, the presentation is fantastic and I can see a lot of potential on this idea! I think it might be worthy to clean it up post jam :)