Definitely a brain burner but a great idea. I think that the deck could work better or offer either more interesting or more defined variety of commands (on one hand I like the simplicity of cards in Dragoon Drop, on the other most commands aren't satisfying. I think your hand could be way tighter). I dig the retro look, feel and sound of the game. Drag and drop on the other doesn't feel quite smooth as I would like it to be.  Burning cards is boring, I'd try to add little more to it.
Anyway, this design has a lot of potential.