Thanks for playing! There are some artifacts/items meant to have specific synergies, so that artifact is really useless unless you have any of a few others that bend some rules and allow you to pick same numbers. Probably I should gate them so they don't appear if those conditions aren't met. There are other similar confusing effects that play around some of the keywords, but I lacked time to balance and properly explain them. Fixing them in a future version, if you're interested to check them out later on