"If you nerf CoC you need to buff X champ..."
No.
I've seen a variety of people say that some champions might need buffs if Riot nerfs Courage. Newsflash; The Mastery was introduced THIS patch, meaning those champs are NOT balanced around that mastery, any nerf to it is NOT a nerf to those champs because they were fine just using stuff like Grasp.
The Mastery was a huge buff, yes, but it doesn't mean Riot has to straight up buff champs to compensate. Most Tanks have a 55% win rate with CoC, you DON'T want them to remain on that level even with CoC nerfs.
Some people really give me a headache.