A support item that counters mobility

With so much mobility in the game, I was wondering if we can have an active support item that helps counter mobility. I was thinking something like this:

Item: Active A skill shot that sends out light (whatever element) at a fix range and when the light makes it to the end it turns into a circle field on the ground. Think of soraka e shape and cassopiea w cc combine. With the activation like the old completed item. Enemy in the circle is grounded(which means no dash, flash, and blink) for about 2 to 5s (whatever number seems balance). The circle should not do damage as its main point is to be a cc. Of course have a 90 second active item cool down. So its not spam-able. For the skill shot part we can change it to it has to hit an enemy champion to activate (whatever seems balance) Stat Whatever stat supports need and does not get abuse by other lane.

I know I am probably going to get a lot of dislike from ppl who favorite mobility champion. I really wish their was a cool active support item to choose from. Most of the items out right now are really lame and boring.