Item restrictions

This suggestion may not be a idea that everyone would like, but why not item restrict to certain classes.

For example and , both items are melee and range only items.
So why not take it a step further since item balancing has been issue, since changing one item makes one class better, but another one broken. We should make Tank only items, that only champions classified as tanks can use. Make it unable to be bought by any other champions not in that classification. Than have universe item list where every champion can use. While the other item list is restricted based off the champion classifications.
I know this will ruin many off type builds, but it would fix the issue with item balancing.