This is actually a very interesting game that you would never see outside of a browser. You could have spent more time on the design, because there's one issue that anyone can see right away: since you have to write "sentences" to take any action, it seems optimal to spend 100% of your attention on typing, ignoring anything else. One solution that i see is to make the words complete themselves very slowly(or some sort of passive benefit), so if you want to stop typing to select a card, or check the status of the game, you will not be punished too hard.