In simple words, Wards grant you sight. You might as well walk in blindfolded on the LoL map if you’re not going to use a ward during the game. You see, most of the map is covered in the fog of war.

Also check out: Out of combat effects in LoL Best Ways to Apply Map Pressure ... but if you don’t know where to ward, it's as good as having no vision. The purpose of wards is to allow your ...