Hi! thank you for the feedback!!
Those are some of the things I didn't have time to fix, but I'll update the game as soon as the Jam is over. In the current build you can't see your deck or discard pile, so unfortunatelly you don't know if your deck is empty before playing draw cards. About the stun, I'll try to make a tutorial to explain in the game, but in the current build for each level of stun there's a 25% chance of fail, so level 4 or above theres 100% chance of not being able to attack.