Loved this! Great vibes and aesthetic, the art direction is phenomenal! The mechanics took a second to get used to, in that I wasn't initially sure how the turn order worked. I also wasn't sure whether the card choices you get after a fight added cards to your deck or upgraded existing cards, so early choices felt a bit haphazard. I would've liked to have had an opportunity to play out more cards in the turn order (maybe as part of a boss encounter, you let the player go all out, etc.)
You've basically got a mini Slay the Spire here! Very impressive for a week jam, you guys must've worked hard!