Nice attempt at combining card battles with turn-based strategy! The graphics are well done given the time frame, although I feel the light flashes can feel a bit annoying. I would like some music to go with the experience. It would also be good if you allowed the game to be scaled beyond phone size.
The gameplay is fun at times, but I feel the ability to see enemy stats is seriously needed, else the first run through any map is mainly guesswork. It feels especially cheap on level 3 where the "werewolves" can attack your base from halfway across the screen, because (for me, at least) werewolves trigger the image of savage melee warriors, not lightning bolt wielding sparkmagi. Aggro also seems to be the only viable strategy because the enemy is able to spam creatures endlessly, while your deck (that consists of only creatures) is very thin in comparison.
The game is easy enough to figure out but I feel that the process would be a lot smoother if there was a tutorial.
I think the idea has potential but this is probably not it's best execution.