New item, summoner spell or Support ultimate idea

I have had an idea for a new support item, summoner spell or a new supports ult, basically just a mechanic that should be brought into the game. They should add the ability to remove invulnerability. This is mainly toward the current op/ cheese champions that have invulnerability that is annoying Tyrnda, Kindred, Kayle, Taric, or anyone with Hourglass. It would be point click and remove invulnerability from one target.