The coin system is to help "equalize" the randomness so you can invest in re-rolling. Also the "NOT" condition was added so that players wouldn't be looking for specific items all the item (e.g. "NOT green" means you can put both BLUE and RED). But I definitely will keep in mind that it may be "too random". Thank you so much for playing and I really appreciate the constructive criticism :) I'm really glad you enjoyed it!