New Clairvoyance

I read two threads today, on separate topics, but together they gave me an idea. One topic was about Clairvoyance sucking (don't lie, Scrying Orb took over its limited niche). The other was about how disconnecting gives you false vision where you had vision before you dc'd (like where wards/minions were). This brought me to a combination of the two to improve Clairvoyance;

Clairvoyance - Reveals a small area of the map for your team for 5 seconds. If it reveals an enemy ward (pink green or yellow, doesn't matter, nothing else though), it will deceive the ward(s) into giving vision of terrain only and nothing else to the enemy for the wards duration. Clairvoyance scans can not be seen by the enemy.

Sounds too OP for counter-vision? Well, you have to have vision of the ward, meaning Stealth Wards will be unaffected if you scan it after it goes invisible (unless you Sweep it).