User blog comment:LivesByProxy/Ward Variety & Sight Options/@comment-7709681-20160227013232/@comment-10768370-20160229142844

With the aggressive ward my mind immediately tends to go to either the Wolf Spirit, which you get when you smite the Greater Murk Wolf, or perhaps the actual Wolf of. It would work though, but gives a way larger don't-go-here zone and I think it would either have to be reserved to an item active or be activated at the cost of something since it's a pretty powerful thing that should have at least some cost to it.

As I'm on the subject, how about you could do this with your Sightstone?

In a similar fashion to the --system or the -- you could interchange between the various ward-types and active effects at little-to-no-cost, making the ward-game still reserved mostly for the support but also enabling other classes to actually benefit from taking sighstone. Hell, maybe just give all the respective sightstone upgrades more aggressive or defensive stats. Then it would maybe be viable for the jungler or top-laner to build something like that.