2 Changes to Zed so that he is not so Obnoxious
First of all revert the ult nerf because .5 seconds is literally nothing, not even enough time to get in range and actually punish him before he blinks around like crazy. If anything make it scale down 1 second delay at 6. .75 second delay at 11 which would still make him strong mid game but actually punishable and then .5 second delay at max rank.
And secondly make his passive not apply to minions. He has already been discussed about by Riot and they say he shouldn't have good and safe wave clear for being an Assassin. So at least make his laning phase not a piece of cake by actually making the Zed try to last hit instead of executing them all under 50% hp.