Summoner Spell Ideas

Now I know we've been down this road before. But hear me out. A summoner spell where you silence an enemy champion, but with a twist.

The summoner spell comes in two parts: At first cast: Select an ability to silence by hitting the corresponding letter. At second cast: Select an Enemy Champion to silence for 2 seconds.
[They have to be within a certain radius of you, hover over select enemy champion and activate] [Activates after .4 seconds accompanied by visuals and sound effect] [Enemy ability silence guaranteed]

It is definitely going to be a game-play changing summoner. Going into the game, seeing the icon on your enemy laner triggers the mind game between the players before they've even hit the rift. Both players will think of ways to either capitalize/react to what ability goes quiet. There is massive counter-play to this summoner to respect the power of near instant silencing of selected critical ability's. Whether it is your escape, engage, peal all of them can be silenced and only the enemy will know which one.

This is just what I've been thinking about. Thoughts and suggestions are welcomed. Ideas too!