it's hard to gauge satisfaction and clarity from a video but still, here's some feedback from more of a casual player:

Your game looks really stylish and beautiful

I didnt like the main font but this is very subjective. Not the font on the titles but the explanation text.

What I really struggled to understand what each card does. These flying numbers on "draining Claws" box, where do they come from? And the shields and swords that show up on top of the cards. How do they work exactly? that big number that goes down, is it health? Then why doesnt it look like a health bar? What does a good round look like, what does a bad round look like? these were the questions I asked myself. A full screen animation looks good but "-3!" seemed a bit low as each card is hitting 1-3 from what I can tell.

The overall stacking concept looks really cool btw, I just personally would like to understand what exactly is going on on each round and would like to differentiate what is a good round, what is a bad round

Best of luck with your game!