Fantastic game!
I love the art style as well as the mechanics.
In the beginning I was just expecting some classic Slay The Spire gameplay, but my mind was blown when I realised the buffs were persistent.
It was super satisfying to one-shot the final boss thanks to combined use of the vulnerable stacks and boosted card damage. I really think you nailed the progression / meta-game.
Interesting twist on the formula as well with the "between encounter" cards.
Congrats, one of my favorites from the jam!