Possible Zed change

So as of season 7, zed (yes my favorite champion) isn't very meta. I would like to suggest adding something to his passive, perhaps when zed kills (maybe assists too) a target champion, he regains flat energy (X) and a % of his w cd (25/33%). I feel like this would enable zed to scale better into lategame like some other top tier assassins (katarina, kassadin, etc) Thank you for your consideration, TheChillin