Support needs more, that's just it. Vision is too important and if you're going to nerf vision control as a TEAM aspect by removing stealth wards and keeping a 1 vision ward limit then goddammit we need some kind of vision buff. Since supports ALREADY manage a limited field of vision then why not broaden it a bit? Why not make that a part of their already existing meta to drop MORE vision to support the WHOLE team? I'd love to see a support champ that works around the vision game. It's just make my day to have an ult every 2 minutes that literally lights ALL the fog of war for like 2 or 3 seconds. THAT would be troll. Liekt he EXACT OPPOSITE of Nocturne's ult.
And I still stand by the idea that top laners wouldn't hurt themselves to have a sightstone too. It gives health, it gives vision and it even upgrades into a BETTER version if they want to.