"New" Idea for new items

This is a crack pot theory I pretty much just thought so its not well thought out or anything, but I'd like to see what some of the community has to think about it.

We all know and how it stacks as time goes on. What if we introduced other items like this as well? An emphasis of this would be added to pretty much all roles except AD. Honestly I just can't think of any good/healthy way, but if anyone has a good idea let me know.

Real quick I'm going to just give a basis on what my personal Idea is of how I would use it, but by no means is that the only or best. So let me know how you think it would work if you like the basis of this.

Tanks: This would give extra health/armor/MR or a combination of them at diminishing values the more you add. The reason I feel like this is because Tanks are kind of meh right now and this might let them get a bit stronger and would be easier to control with both the max/min and scaling over time.

Mages: They have their so they don't need another lol

Supports: The emphasis here is on the passive gold gains. As time goes on the passive gold gains increase. Being a support main I personally feel like the role in total is ok, but I think its one slight change we can do. Another Idea is to let the sightstone evolve like the items do, but let it be based on time (or wards placed, but thats exploitable and a different story).

Junglers: They can honestly dip into a few pools like the sightstone with Lee sin or tank items like Mao, Sej, etc.

Overall I think we need a few more late scaling items and Time is actually a decent way to do it imo. WIth most scaling items like this they will most likely be a first completed item so it makes it rather easy to judge strength at times and how it will pan out.

Let me know how you all feel about the basis and any ideas you can think of to improve it.