How are you supposed to play vs this character?

No rant, genuine question.

I'm no KSante main, just someone who plays/top jungle. Whenever KSante slips throught the ban phase and gets picked, nothing we do seems to stop this champion. Even if he dies a couple times during lane phase, it will still outdamage and oneshot our carries, and outlast our tanks. He may not 1v9 solo carry the game, but it's seems to always be an issue, no matter how far behind.

What's the counterplay to KSante? What are his weaknesses?