I realized how the game worked (mostly) during the third attempt.  At first I didn't understood the concept of the enemies, I didn't see them when they were mentioned and it clicked only later when part of my hand wandered to the enemy side.  I also didn't see the significance of diamonds, hearts etc. The only information came with one short text by the dealer, were at first I wasn't sure if it was tutorial or just talking. The  text said diamonds have an edge, I have no idea what that means. Then the text says I should discard (I think) spades and clubs but doesn't tell me why.  The animation after playing the hand is quick and satisfying but I don't fully understand what happens with all the damage numbers. Maybe the firs played hand should have more of an explanation what actually happens, maybe stopping the animation to explain why you get points/damage and so on. I also didn't get how my points correlated to the damage at the bottom. I also may encountered a bug, I had a 10, j, q, k and spade in my (4 diamonds and one other I think) hand but when all selected it said I have a flush(different colors in hand btw) not a street. When I removed a card it became a street.

On the second run I understood the enemies - I think making them appear slightly larger might help. The font is a little hard to make out on some numbers but other than that it felt really good, honestly.  You've got a fantastically interesting game!  I found strategy a little difficult but with it just being the first level it didn't feel like much was too possible, but I'll definitely feedback when there is more to play as this was really fun!

Hope this helps!

Played the web version. It took until around round three or four to realize that Spades and Clubs play a double role: they’re the enemies, but they also carry the attack. Diamonds and Hearts were much easier to grasp.
Because of how the mechanics work, after a couple of tries, I kept Chrome’s Gemini open alongside the game as a way to double-check the rules.
The design is clever: running the whole game flow on a single deck of playing cards is a really interesting idea.

A clearer explanation of the numbers would help, if possible. For example, it isn’t obvious why player attack, enemy attack, and healing stats grow so much, or how much each special hand (Pair, Full House, Flush, and so on) adds.

On the web version, for players outside English-speaking regions: if the browser language isn’t English, the game seems to default to Spanish. A language option in the web trial would be a nice addition.