I think many of us went "HAH!, what if we made a game about a scales LOL" but then moved on with their brainstorming session, you however, did not, and for that I'm glad. This is such a interesting spin on deckbuilding roguelike were we have a bit of tetris in the mix too.
Also the fact that there even is bosses which also work so well. Very well executed and polished. (Btw, Mirror seems OP)