Some ideas for Support Champs

Something that I didn't realize is that Riot haven't really released a tank support. I guess Nunu fits this, but his kit was definitely meant for the Jungle and not for the support role. If I'm right, it's been a very long time since Riot did release one, so I think it would be nice if they did for the support role. I was thinking maybe create something like Undying from Dota 2 cause I think it would be cool to release another support champ from the Shadow Isles. A champ that would steal a bit of AD from a champ like Trundle's Q for a bit and consumes it for health for both you and a nearby ally with the lowest health. Or maybe is entirely a debuff champ whose tanky as he debuffs, but is shit at damage and slow as hell. Yeah it would be broken no doubt, but just a thought. If it worked for Dota, I see why not and integrate it into League.

Another Idea is a Noxus General who yells at both allies and enemies that would either buff or debuff. Then his Ulti would be a warhorn that would buff everyone around his aura like Taric's old Ulti. He could move, but with reduced movement speed like Tahm Kench when using his W. Maybe this general would be a figher support like Taric since he could deal somewhat damage on his own, but not really.

What if Riot releases a tank champ who is also a ranged champ? Yeah the damage would be shit, but I think it would be cool. Cause think about it, in a teamfight, the champ would be kinda shit considering how Tanks want to be in the frontlines and seeing how they are slow as hell, so maybe make this champ's range like Urgot's or like Thresh and have the same idea with Thresh being both melee and ranged. Maybe this champ would want to be in front to soak up damage and take it out on the enemies, obviously the damage it would do wouldn't be crazy high, but enough when scaling.