User blog comment:JAlbor/Community Thoughts on Ward Changes/@comment-5514182-20131116060424/@comment-7481207-20131116110707

Twicth doesn't have perma-stealth. And sweeping lens reveals mushrooms and the oracle's lens upgrade gives 10 seconds true sight. Not really good enough to stop Teemo from planting shrooms all over (unless your entire team gets it), but its something at least.