Runeglaive creates more potential, more build paths creates even more

Lol probably a late post, late to the party.

Runeglaive arguably is the better version of the ap jungle item, but this limits some other junglers' and the only one I could think of is fiddlestick, I know that some people doesn't build jungle item on fiddle, BUT it is still an decent size impact for SOME people.

Why not increase the build path of jungle items, and having more situational, champion differ items?