I do like the concept and art but i believe the game play gets pretty repetitive of clicking the button over and over. Some animations would go a long way into making this more interesting, look at the animations similar to hearthstone of dragging and dropping them into play with animations and sound effects individual for each card
Overall very interesting concept that has some potential. Good work!
https://itch.io/jam/brackeys-5/rate/927683?after=40#post-2684566