Took me a bit to get the hang of it, but found it pretty interesting by the end! I liked having the choice between the two different decks, it really gave a sense of control that I often find lacking in other card games, while still keeping the randomness factor.
Obviously some better visuals would have been nice, and there were a number of situations where the UI seemed a little buggy, but nothing that prevented me from progressing.
Overall, though, nice job!