User blog comment:Leyrann/Riven Rework - Yes she may be able to use one/@comment-24859444-20150126230739/@comment-4834593-20150127065411

Actually, she doesn't gain any mobility except what she takes in exchange for Wind slash, so compared to her current state it's a pretty high price.

And she can only buff one Q cast yes. I'm going to edit that in to make it clearer.