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.