Nasus should really be reworked to require literally any non-zero skill to play
This type of binary outcome, single strategy champion is absolute shit game design and should not exist, because it completely removes any and all skill component from the match up.
Once he has Sheen, he pops Ghost and runs you down. Either you kill him first or he kills you first; for Nasus, there is no skill component. For the vast majority of champions, there is also no outplay potential. The outcome of him Ghosting and running you down is completely black and white, because he doesn't have the capacity to make mistakes.
I just had a normal game as Kayle vs. a low gold Nasus. I could predict the exact moment he would Ghost/Flash and kill me, every single time, but there was literally nothing I could do but accept the death or completely leave the lane.
In a high MMR game, this would have been a non-issue because the jungle would play around Nasus's Ghost and countered him, but this jungle wasn't good enough to do that. The end result is that I'm repeatedly run down by an unskilled player right clicking me, with literally zero counter play and having made no mistakes.
If anything, he should be one of the top priorities for a rework. This type of play style has no place in the game.