NOTE: This build is based off of the current highest winrate viable items for Riven, using the data found on Lolalytics. I was asked a really good question about this, so please view the comments in the Discussion tab and join the conversation!

This short guide is not meant to be a general Riven guide and assumes you know the basics of the champion, so I'm not going to detail the combos/tech and focus more on the overall gameplan.

The purpose of the starting item and rune setup is to give you the strongest level 1 possible, allowing you to dominate the laning phase and hopefully take that lead into the midgame and lategame.

To this end, my number one tip is to play around bushes level 1 in order to get a good trade off, Azhy style. Riven's level 1 is stronger than most other champions, but into match ups like Darius with W start where you don't win level 1 it's fine to concede level 1 prio.

You should try to short trade when you're the same level as your opponent in order to bring them into kill range from one spell rotation. Be sure to stay aware of both your and your opponent's level up timers.

Many people try to play passive into ranged match ups level 1, but this isn't the best strategy on Riven. Play around bushes and try to chunk down the enemy with a fast Q trade if they walk up.

My gameplan is to get an early lead, then freeze/crash until I have Hubris and I'm very far ahead of my laner. From there, I begin proxyfarming (optimal waveclear combo as the minions are walking back to lane is Q third melee so you hit all three > auto melee > EQ casters > auto a different melee > Q3 on the middle melee > auto the last melee > W), allowing me to impact the map through invades, objectives, mid roams, etc. Proxyfarming also allows you to farm plates, which can skyrocket you into the midgame.

If the enemy jungle shows up, your laner should be too far behind in items/xp to help them or be stuck farming the wave. If you don't think you can double kill the jungler and your laner, wallhop to safety.

During midgame, take sidewaves and rotate to your team to join the fight and create a numbers advantage, stacking Hubris when possible.

In teamfights, don't initiate because you'll die instantly; try to find a flank angle and take out the backline, or join in the fight late with your ultimate and clean up the enemies.