had a lot of fun with this one! checked your gdoc for bugs/etc and don't think I saw this, so wanted to note that while it's not necessarily a 'bug', you can if you have fever + the truffle with 99 uses in your hand execute a set-up where you can basically 'endlessly' buff 'eat to increase power' cards in combat. it slows down the game a lot (particularly bc it runs into a lag where it wants to trigger all the animations for drawing from your deck one by one, slower than you can play/draw cards) but probably more pertinently it might be on the extreme end of desired player behaviour. in one run I had two fever cards + two of the 99 use truffles and a deck balanced heavily towards dmg cards that buffed on eating, so with patience I was able to sit there and raise everything to such obscene numbers that I'd delete even the end demo boss upon playing anything. without looking at individual card balancing itself, I think a sufficiently generous 'cards played before forced turn end' hard cap would still allow for trick plays like this while mitigating the cheese enough to keep it challenging. another option is potentially to set a limit on how many times a card can be played per combat turn regardless of energy left.