sorry nami mains :(
A while back someone made a thread complaining yasuo's windwall stops nami's ultimate. At first I thought it was ridiculous and that making her ult go through wouldn't make a difference.
I started playing nami recently and going against yasuo is the worst feeling, even though you're the support and he's the mid laner. Come teamfights if he manages to place his windwall at the beginning it actually blocks every single one of your spells and leaves nami completely useless for the duration of the wall. If you're alone and yasuo runs up to you, there is absolutely no escape as long as he uses his wall.
Now I know pain.
