User blog comment:Typhron/Karsima, Divider of the Sands/@comment-4834593-20120623144943

So she can globally have 5 wards up all the time for free? Or even 8 with cooldown reduction?

If you ward Dragon, Nashor, and 3/4 buffs, you have too much map control.

I think it'd maybe be better if you would put a maximum (like 2 or 3) on it, and reduce the cooldown. That means you get some map control, and it wouldn't be a really big problem if they destroyed one, but it wouldn't allow you to see every tiny corner of the map.