Actually a very solid game, congratulations! I loved the art style and the music was also really chill too! I also loved how it took inspiration from actually coding principles (Like the "if statment" for example). If I were to recommend some additions, here's what they would be:
- Add a player health bar.
- Add another type of card that allows you to gain health (could be lifesteal or straight up healing)
- Level 5 is a little hard (it may be a skill issue tbh)
- More card variety in general, it was kinda frustrating when I kept getting the same cards and couldn't combine them to create new attacks.
Overall, this is a fantastic game, great job!