pretty self explanatory. to remove a card go to deck and click the card you want to remove. When battling with A and A+ ranked cards you will see a meter/bar thing and a moving pointer, try to stop the pointer ( by clicking it or pressing space) when it is touching the red to get the most power, green gives you the least. in games you play 10 rounds
I got the idea of Snufulufogus and their game: https://scratch.mit.edu/projects/2291262/ (note: Snunfuluflogus is inactive and the ancount is 14 years old)
