Just space to see what you get.(It might not looked like it didn't change but you probably just got the same thing twice) This a pretty customizable rarity engine that you can use in your games as I know the difficulty of coding a good rarity system trust me as this is version 3. This version is more advanced and actually makes the chance accurate.
Thank you to @TechW1zard as he was the one who gave me the idea to upgrade my old rarity engine and make it better.