So, we all know that Riven and Yasuo uses Wind Technique. And they both have similar abilities.
They strike 3 times when they use their ultimate abilities.
However, the new Yasuo skin (Nightbringer) strikes 6 times.
You can see that Yasuo swings his sword 3 times [here](https://youtu.be/fkM20LgOdKQ?t=3m50s) or [here](http://www.lolking.net/models?champion=157).
And you can see it [here](https://youtu.be/gP78A2T-Z0Q?t=2m25s) that Nightbringer Yasuo use 5 "shadows" to strike 5 times but then he strikes for the 6th time again.
I think it ruins the whole concept. So, Riot Games should change it. Like 2 "shadows" strikes and then Yasuo strikes for the last time or something.