For me, this build is the best for a champion like Riven. Every game I play with Riven and the build, I make outstanding scores and my ennemies fear me. Riven becomes a very aggressive and powerfull champion. This build is great if you like to gank. Victims don't have the time to escape that you're on their back and attacking them. You can also tank your team in a team fight or versus the baron with her lifesteal, attack damage, critical percentage and large ammount of health.