Items that will make or break team fights

Ever play support and go full derp after building sightstone and boots? Ever play jungle and not know what to build? Ever wonder how you're losing team fights when you were ahead?

It's not your mid-lane nor your adc's fault. Yes to some extent it could be their fault for being insta-deleted if they get caught in a bad position but guess what? YOU need to peel for your damage.

Oh you're winning team fights but they keep running away successfully leading them to farm up and eventually come back? Build this: They have an ad or multiple ad's with significant amounts of attack speed? They have tons of ap damage? They keep focusing your damage with disables, stuns, roots, etc.? You need that extra bit of engage power or to save an allies life?

Legit the low elo build path is utter trash for team fights. Nothing is getting done if everybody is building damage.