The problem with Nasus is his Wither, everything else on his kit is technically fine
Note that I said they are fine, not that they are healthy or something. Just that they are tolerable.
The problem with Nasus is his W, Wither is the thing that makes Nasus so difficult to deal with, because it is a targeted, instant slow that not only is ridiculously strong, it also happens to slow your attack speed. This not only makes you unable to escape, but also unable to even duel Nasus. The only two counterplays this ability has are: 1) Stay out of range (difficult if you are melee or short ranged if you don't want to lose tons of farm) 2)
(you have to dedicate an item slot for it however, and it is only counterplay for a few seconds before Nasus has his W back again).
Everything else on his kit can be dealt with. His passive? Makes him difficult to outsustain and poke out of lane. Lots of other champions have sustain that also makes them difficult to poke out of lane however.
and others: many of those champions have been nerfed for doing that. This makes trading with those champions difficult, if not impossible. However, most of those champions either can't force you to duel, or cannot scale ad infinitum.
Infinite scaling Q? Well,
exists, and nobody complains about him (at least not as much as Nasus). The fact that he deals tons of damage with this ability is frustrating, but technically fine. The problem is that Nasus can SLOW YOU DOWN and prevent you from escaping, so you cannot avoid taking this ability unless you stay away from him.
Ult that halves the cooldown on his Q and gives him resistances and health? (on top of the max HP magic damage) - It makes him impossible to duel. There are other champions that are impossible to duel once they activate an ability (or even without an ability) - Examples include
or
or
- However, most of those champions have a way harder time forcing you to duel. This is because they can't slow you down, they must run at you themselves. giving you an opportunity to escape, especially if you have a dash or an ability to speed you up yourself.
The problem with Nasus is his W, this is the thing that makes him unbearable, he forces you to duel him, yet you can't really duel him because on top of having your attack speed reduced, he ults and gains health, resistances, and double the Q cooldown, meaning you take tons of damage while you can hardly damage Nasus back.
There is a reason why Riot has been removing attack speed slows from the game, they are unhealthy.
has one, but it is fine, because he needs to have you in melee range, and he is supposed to be an anti-AD champion anyway. Forcing a champion to duel you is also unhealthy, there is a reason why
has been nerfed a lot, once he has
you can't escape from him.
I believe Riot should consider reworking this ability if they don't want to rework Nasus right now, because it is the core of most of Nasus' problems.