could this be answer to the problem of immobile champs???

So i literaly just posted another posy regarding immoble champions and how they are pretty unviable at this moment.

While i was thinking of how to accomplish that, i came with the idea of a new item concept!

This new item will have many possible builds, tank, ad, ap, and some other stats, the thing that will make this item essential to immoble champions is it's active.

It's active will pretty much warn you of enemy champions at a specific range that are not visible to you!

This will prevent immobile champions from getting ganked, the enemy will have no idea by watching your items that you have used this active and thus will not know when its cd is down.

This item will make mages and all other immoble champions more survivable to ganks while flash is down!. I know warding is a good solution but sometimes wards are not easy to place as overextending could result in getting unpleasant encounters.

Tell me what you think of this idea!