Thank you, it means a lot!
I did try to implement STS-like mechanics as you describe but it just doens't work since the player can just sit in a corner and redraw their hand over and over until they get a perfect combination of cards, which defeats most of the deck building aspects of the game, diminshes a lot of the emergent gameplay and removes the tension that's inherit in seeing your resources dvindle over the course of a floor. It would also allow you the cheese the game by playing cards like health potion over and over until you have full health :p