The game was really enjoyable. It has a great visual style, an interesting core idea, and fairly simple solitaire like mechanics, but at the same time it keeps pulling you back for just one more run to finally defeat the boss.
If I had to mention one criticism, it would probably be that compared to other card games across different genres, the additional properties or effects of enemy cards are not always very obvious. It feels a bit unusual at first and takes some time to fully understand.
Other than that, everything feels fantastic.
As for suggestions, I think it could be interesting to expand the mechanics a little further by adding more special cards that could be shuffled into the deck between rounds, maybe with some more unique interactions. Of course, I understand that this is difficult, since balance is extremely important for a game like this, and honestly the current balance already feels very good.
We would also really appreciate it if you could try our game and leave some feedback as well, since we are also participating with a card game project.