User blog comment:KetakuShai/Riven Rework/@comment-7709681-20141105053146/@comment-24336345-20141106043046

Here's how this works: Her Empowerment is her ult. What did was nerf her base values in order to buff her Empowered without it seeming too broken. I went for a concept similar to both Shyvana and Renekton, in terms of how resource is gained and what it does for this champ. She will still be as prone to key smashes as before, but now she will gain her resource, and keep her original passive. The bonus HP scaling on E is to encourage people in to build more sustaining items, such as my two personal favorites Randuin's Omen and Spirit Visage. Riven's current role in the league is a mid game Assassin/Bruiser, what I want to achieve here is to scale up her late game duels by adding an active buff that decays over abilities cast, not a timer.

Whatever else I was going to say I forgot because I got up and got food mid sentence.