User blog comment:Leyrann/Riven Rework - Yes she may be able to use one/@comment-24947613-20150127063155

If you want to gate her power and get rid of "double-tapping R", just make her EARN that Wind slash, building up Ki during her ult. A clear assasinassion pattern, very much like the one Zed has and similar to what Riot want Fizz's R to be.