User blog comment:Andrew.heo1/When to Get a 3rd GP10 Item on a Support?/@comment-4434378-20120818010046

Kage is good on ranged supports when you get fed (on assists/kills). On melee supports (Nunu/Ali) I just ignore it since I want those tank items as soon as possible so I can actually wade into fights. Getting those aura items is a whole lot more useful to your team than 25 ap.