Wow, great intro and great tutorial sequence. You do a good job of explaining how the game works and it feels very rewarding laying out a good attack. The UI feels very fluid and the little animations are plenty of visual stimulation to keep you engaged. I really like the chance elements mixed with the other mechanics, getting the shape boosters feels great, especially with more elaborate animations.
I really enjoyed the narrative presentation and did not expect it to get that heavy. Struggled for a long time on round 4 but it felt great finally beating 'my game'. Great ending though, it felt well worth it to see this through to the end.
I think I found a bit of a bug on round 4 where by hitting 'exit game' right before failing, I reset my health but the match continued. It managed to fix itself when clicking exit game again though.
Phenomenal work all together, this has some serious vibes and is thoroughly enjoyable to experience, even with the dark subject matter. Building the deck felt great, getting cards from the store felt so rewarding, and repeating battles somehow felt more fun each time.
My only real suggestion is some kind of possible function to draw more than 2 cards at once, it can feel a little painful towards the end of matches. Outside of that, wow! Such polish, elegance, and love put into this. Awesome work!