How about not buffing Zed until he becomes less overbearing to play against if immobile?
Losing 70% of your health to an unavoidable W + E + Q combo because you dared try to auto attack a minion is already a little too much.
His ult has too much counterplay, sure, but he's completely lacking in counterplay if you can't clear the wave from behind his W range. Shift some power away from his non-ult combo.
mains: ….