Idea, Categorize Items!

In a nutshell, not every champion should have the ability to purchase every item.

For example: Champions with no AD Scaling in their abilities shouldn't be able to purchase a BF Sword ---> Champions with no AP scalings shouldn't be able to purchase a Deathcap ---> Champions who don't use mana shouldn't be able to purchase a Tear --->

This idea doesn't really have any balance effects but it does add a lot more "clarity" as for items are meant for and what champions should be building them. For example, Runaan's is a "ranged only" item and Hydra is a "melee only" item. I feel all items should be categorized in a similar manner and only purchasable on champions the item(s) pertain too. Not only would this help newer players who don't understand what items to build but it also helps prevent players from trolling or testing some questionable builds which have minimal benefits for their team.

When I first started playing League I thought things like I.E. were good for champions like Nami because she was ranged and could attack people from a distance.. however this is pretty far from the truth that I later have learned. This type of confusion should never exist and I feel it would be better if champions were only capable of purchasing items that are designed for them to use.