Pantheon stat changes to accomplish riots goal?

Riot wanted to take pantheon out of midlane, yet that is his highest winrate position. What changes would you make to make it harder for him to be played in mid lane?

Personally, I wouldn't mind seeing his base ad and Mr lowered to raise his health and armor, perhaps even a slight increase on his damage ratios as well (not much, maybe +0.1 ratio on Q or E). Or to make him better in top, maybe some kind of sustain in his kit? Killing a unit with Q maybe gives a flat amount of health, like cho passive?