Very stylish. Love the art, the music, and the whole vibe. The deck screen could use a button indication of some kind to tell how to leave. Similarly, really wish I could see the rolls that the enemies were doing. Took me a bit to figure out that I was waiting for the enemy to attack and that's why my health suddenly went down. Also took me a minute to spot my health, a little hard to distinguish against the similarly colored background at first.
Love the overflow mechanic, thought it was fun to try and decide what dice to use and the fear of killing myself or healing the enemy made me care a lot about the outcome of each die roll.
I like the idea of the auction, but think it dragged on a little bit, would love if it was a little faster paced.
Really want to emphasize that the core mechanics are super fun, great work!