Hi, thanks so much for the feedback! We didn't get enough time to add indications or tutorials, but basically if you right click you can discard any card. The idea is to manage your resources knowing that if you run out of cards you loose, or that sometimes keeping the 12 for boxing might cost you a lot of discards on the other cards. Of course for the gameplay loop to be solid it would still need a lot of balancing and play testing that we couldn't do haha, Thanks for playing!