Great game juice in this one (this is level of juice I strive for! :D) The controls felt very solid. I think the card exchange was a bit buggy for me (it seemed to be repeatedly triggering the selection sound effect when hovering on a card, and sometimes when I'd exchange I'd get the same card again, but these are just some minor issues that stood out to me because everything else was so polished). The boss attack patterns are also fun -- very nice job and kudos again on the polish!