Ruby sightstone idea
I couldn't find the build % on the item anywhere (probably wasn't looking in the right spot) but I wanted to see what % of players actually build this item. It seems like it would be awfully low now with the other vision items.
This got me thinking that the RS could be part of a build path for a new set of sight based items. Maybe have it combine with a couple different items for another 1200g or something to give it more late game power on a full build support.
I really wanna use FoTM again but I can't justify not building the alternative with how bad RS itemizes late game on a tank. It may be fine on more caster ap types but on tanks it just feels like I am hobbling myself and the team by building it over my other support item option.
Maybe add in a specter cowl or raptor cloak for bonus late game D stats. If the argument is that other people will start building it, is that really a bad thing? Again not saying change price of RS just give it a further build path for a more useful late game option.

for the extra hp and the 10% cdr actives on items like

or
. I usually like to save an item slot if I can for pink wards.