He has a lifesteal passive for one, which makes no fucking sense and makes him straight overpowered.
He has a large aoe armor reducing morgana w
He has a free exhaust but stronger
He has a built in gargoyles stoneplate.
He needs a rework if he won't recieve a nerf anytime soon, it's fine if he's still a late game power but where he is now he's way too strong unless he's alone and all 5 of your teammates attack him. Leave his q alone sure but the rest needs to be changed