I managed to power through the UI issues (if I looked really close to my screen I could almost read the cards 😅) and complete the game.
I think you have a good core concept, and I like some of the events you had outside of the card battles.
My biggest complaint would be with the strategy. It feels like there is never a reason to use anything but an attack card. For card games like this, I think it's super important to have a large variety of cards that perform unique abilities.
I think the enemies are also super basic, at no point did I feel like there was any threat of me losing.
While it's clear the UI and sound needs some attention, more importantly I think you should take a deeper look at your core gameplay, there just really isn't enough depth with the cards you have in the game right now.