New Idea for Gamemode

I think I thought of an awesome new Game mode idea. It's like capture the flag, but a lot more than dominion. It could be played on the summoner's rift map, and I was thinking that you have the regular teams of 5, but instead of trying to destroy nexus you are trying to capture a buff that is there, and then bring it back to your base. I was thinking that the river would divide the two sides, and that when you're on your side of the river you take half as much damage and deal twice as much damage, and vice versa when you're on the other team's side. The buff could just be some small monster you can kill in one hit, and then when you have the buff you move at like 2/3 speed that can't be removed by any cleanses (or yi's ult or things like that) and the range of flash and flash spells is cut in half. The percentages would obviously need to be balanced because those might be overboard, but I think that could be really fun, sneaking through the jungle (maybe disable wards?) and playing almost a little hide and seek, and having base defenders and trying to grab flag at same time. Just wanted to see what the community thought? And also maybe if there was a way to talk to riot about this? I know that's far fetched, but I think it'd be really cool so I'd at least like to see what they think. Thanks!