Anyone Think Xerath is Too Strong?

I mean really the only counterplay I notice with this champion . . . is that you have to play someone that can go in on him directly. He has very long range, a stun, a slow, a passive that grants him more mana back, a very long range ult, a great amount of damage at every part of the game. Like with a lot of your champion designs, he does way too much and is way too strong. I shouldn't have to give up playing my favorite champion that I love to play every game, because I am up against a Zyra, Xerath, or Vel'Koz.

If all of these champions with great range are going to be allowed to exist, they need to have the worst Armor and Magic Resistance in the game or their scalings need to be terrible early and mid game. I feel like there is not enough counterplay against them.