The actual nerf Zed always needed
Make his passive not work on minions.
He has plenty of farm tools in his q, w, and high damage auto-artacks. If I'm bullying hum under tower, he shouldn't get free perfect last-hits on every minion.
This will make him harder to play for the inexperienced, because he won't have the highest fsrm in the game but shouldn't change too much at a higher level.
He can even get compensation buffs in energy costs or something for all I care. I just want him to have to work to farm like every other melee assassin in the game.