User blog comment:Doctursea/Slot just for wards/@comment-216.36.26.248-20121009103313

I support the ward slot as well. And while we're at it, caster Wriggle's. A little AP, a little Spell Vamp, maybe some resists, and an active to place a ward.

Also, a metric on the score screen to show how many wards placed/purchased. Since metrics on the score screen seem to motivate people much more reliably than anything else, I imagine seeing on the screen that your support placed 28 wards while your top and mid combined placed zero would gradually motivate people to place a few more.