Really cool game! One thing I did notice is that it can be hard to tell what some of the cards do. Especially Increase/Decrease on certain cards.
On some cards "Increasing Hunger" means means you get more hungry, while some cards has "Increasing Hunger" meaning your max hunger goes up. Same thing with HP.
As an example, I had a Vampire run, where I build it around having high HP and gaining points on the hunger-bar every flip, meaning I could use the vampire bites to do mad damage. I lost at boss, because of buying a balance card at wave 29, that said "Increase Hunger 1.5x while Decreasing HP 2x" - Because of how the other cards are worded, I took it as meaning, I would get 1.5x more hungry, while taking 50% less damage. It turned out my hunger bar got multiplied by 1.5 and my MAX HP GOT HALVED?
I also noticed that gaining gold is way too easy compared to how rare it is to see the shop. I end most runs with +50 un-used gold.
This game has a lot of potential, though I would generally love to see more clarify on what each card does.