I gotta say that I really loved the idea and aesthetics. With sounds this would be top notch. At first I tried to be tactial and really understand how the different cards work, but I ended up having the most fun when I was just dragging random cards to the play area and seeing the flowers grow and give energy back so I could plant more of them. It was a fun loop of constant dopamine :D The upgrades were fun but also enforced that random card spamming that I ended up doing. I think it has huge potential for a more tactical gameplay, so if you keep working on this, I would definitely lean more into that.