Not a bad start and interesting theming. Right now, there doesn’t seem to be much strategic depth and you’re pretty much forced to lose very quickly, but the basic systems seem to work pretty well, good job!
I feel like before digging too deep into further polishing, it might be worth to flesh out the gameplay a bit more. I think one of the main problems right now is that you almost always want to play all the cards you have in hand. A simple fix for this would be to have turns be more like other deckbuilders, using a mana system combined with more card draw.
All the updates you mentioned in your devlog look pretty good now, well done! This is definitely a promising start.