Zed's problem
lets face it, zed sucks. any assassin does his job better then him, and frankly, many divers do assassins jobs better then them (EX: lee sin, hecarim, vi)
the problem is, if riot even slightly buffs him, it becomes hell to lane against him. if he kills you once he can just do it again and again and leave you gold-starved and him fed enough to roam bot lane and end the clown fiesta there in his teams favor.
Zed might need another rework, as he is on a crossroad with each way looking bad.
and
are the meta supports as well as items like these exsisting:
,
,
,
,
among others.
,
,
, among others can beat Zed out.