Nasus buffs were too much
I understand you wanted Nasus to be better but you have to look over him and nerf some parts of his kit if you want him to have the 50% CD on his Q with R. For instance lower his slow or make it a skill shot not sure how you'd do that but he is suppose to have a weakness in being kited I would understand a slow would be needed to give him some form of a way to get close to his target but his current slow is way to much for Nasus to have. His Passive is not healthy I understand he needs sustain but maybe make it so you have to hit minions with your Q or hit champions with Q like Yorick this not only enforces stacking but its also healthy instead of just auto attacking minions. His resistances late game are way to powerful with his passive possibly lowering the ability would make him easier to play against late game. And lastly his Q is pretty unhealthy to the game stacking in general is unhealthy sure its unique and what not but its just not healthy maybe make it take longer to stack or just remove the stacking and just give him increased damage on his Q.
This is just my opinion obviously there are gonna be some Nasus mains or just people to flame me for thinking Nasus is in a bad state as a champion but hes just way to unhealthy to the game.
yeah waste your bann on him .